Fat Boo: Kaifuku no Jyustsu "Healing Technique": Fat Boo's ability to completely heal people who are near death with his forelock.

Little Boo: Koukyuu Gata Kikouha: A very powerful blast of energy in the form of a ball.

Boo: Breath: While this may seem like a pretty dumb attack to us, "Watch out, or I'll breath on you!", for Boo, this is an attack that destroys an entire city. Boo takes a huge breath and expands his body to a large size, then lets it out. The force with which it shoots out of his mouth is twice the force of the strongest hurricane and uproots office buildings.
Other Breath's: Breath Niyoru Henka Beam Kaeshi "Breath Beam Return": This attack is a strong gust of breath that blows a beam of energy back at the character who shot it.
Haru no Niku Kougeki "Stretched Flesh Attack": This attack is more or less what it sounds like. Boo rips off a chunk of his body, then stretches it a bit, and wraps it around Vegita, binding him so tightly, he can't escape.
Henka Beam "Change Beam": Boo's ability to change objects or people into any type of food, candy or subtance he desires. This beam is shot from his forelock.
Kamehameha: ( Goku's Techniques ).
Shogekiha: (Picolo's Techniques ).

Cell's Special Techniques

Cell Junior Umidatsu: Cell's ability to expel from his body, as many duplicates of himself as he like. The Cell Jr's are little Cells who, like the Saibaimen, lack speech and are sadistic. They are exactly like Cell in almost every way, except they are blue instead of green, they have slightly less power than Cell and they cannot regenerate body parts.
Shyougekizan: Cell's ability to manipulate huge pieces of material in mid-air using energy. 
Ketaihenka: Cell's ability to change when he absorbs C17 and 18.
Makankousapou "Special beam cannon or Drilling Attack" : ( Picolo's Techniques ).
Kienzan "Destructo Disc" : ( Krilin's Techniques ).
Taiyoken Solar Flare: ( Ten Shin's Techniques ).
Freezer Beam: ( Freezer's Techniques ).
Kamehameha: ( Goku's Techniques ).
Kikoho: ( Ten Shin's Techniques ).
Barrier: ( Freezer's Techniques ).
Pi: ( Freezer's Techniques ).
Shunkanido: ( Goku's Techniques ).

Cell Junior's Special Techniques

Makankousapou (Special beam cannon or Drilling Attack): ( Picolo's Techniques ).
Kamehameha: ( Goku's Techniques ).

C13's Special Techniques

S.S. Deadly Bomb: A semi-large energy ball strong enough to destroy the Earth. It is used in the movies only.

C15's Special Techniques

Bunseki "Analysis" : C15's ability to analyze every aspect of his opponent such as speed, power, strength etc. through Dr. Gero's Main Computer. This is obviously used only in Movie 7.

C16's Special Techniques

Hell's Flash: This is considered C16's second strongest attack, (and his coolest). He heaves his opponent deep into the ground, then removes his hands and aims his arm cannons in the crater he created by smashing his victim into the ground. He then shouts the name of the attack, and lets a furious barrage of high powered energy blasts into the Earth. The beams of the attack actually fill up the hole in the earth and shoot up through the crust of the Earth, creating huge holes in the ground.
Power Keisoku: C16's ability to scan power levels. He's the only Cyborge with this ability. 

C17's Special Techniques

Barrier: ( Freezer's Techniques ).

C18's Special Techniques

Kienzan "Destructo Disc" : ( Krilin's Techniques ).

C19's Special Techniques

Energy Kyushu: The trademark technique of C19 and C20. The Artificial Humans can absorb energy, either from people's bodies or their ki blasts, through the holes in the palms of their hands. However, without their hands, they cannot perform this technique.

C20's Special Techniques

Energy Blast: An attack used by C20. He shoots energy out of the red ball in the palm of his hand.
Energy Kyushu: ( C19's Techniques ).
Eye Beam: ( Picolo's Techniques ).

Broly Special Techniques

Bio Ekisyushyu Kyodaiha: Bio Broly's ability to absorb matter and make himself grow as he absorbs more and more.

Garlic Jr. Special Techniques

Dead Zone: Only Garlic Junior can perform this fantastic move. By concentrating, Garlic Jr. can create a black hole that sucks everything in its path inside. On the inside is pure black nothingness. Escape from the Dead Zone was thought to be impossible, but when Garlic Jr's home planet neared the Earth, he was able to gain the power to free himself from it. This move is used only in the movies and anime.
Hokaku Technique: Garlic Junior's ability to shrink his enemies and seal them in glass jars. This is only used in te anime.

Babidi's Special Techniques

Haretsu Majyutsu "Exploding Magic": Babidi's ability to violently exploding anyone he has control over.
Paparapa: Babidi's magic words that have various effects such as teleportation and making things appear. This is a magic spell that Babidi can use to teleport people in his spaceship. Actually, he teleports the entire room, with the people in it, to another place. Think of it as, "Abra Kadabra".
Haretsu no Maho: This is the magic spell used by Babidi to make people explode. It only works on weak people though; on tougher fighters like the Z fighters it is ineffective.
Magic Barrier or Slime Hajyu: A weak barrier created by magic. This type of barrier can be broken through.
Majyutsu: Babidi's magic skills that allow him to control anyone with evil in their heart.

Dabura's Special Techniques

Seki Katsuba: Probably one of the cheapest attacks in DBZ, Seki Katsuba, is an attack where the assailant spits on the victim, and the victim is turned to stone if the spit touches them. The only way to reverse the stone effect on a characters is by killing the person who spit on them.
Sekikatsuba: This is one of Dabura's powerful attacks. Dabura's saliva will turn whatever it hits to stone, be it alive or not. The only way to reverse the petrification is to kill Dabura.
Hono: Not a particularly important technique, but this is one of Dabura's more powerful blasts. It's just what it says, a powerful breath of fire.
Other Hono's: Honoo no Tama: A blast of fire Darbura can shoot from his hands.
Zanzou Majyutsu: Need info about this

Janenba Special Techniques

Kuukanteni Punch and Kick: An odd move where the user stays in one place and can throw various punches and kicks into portals. A portal will then open up behind the opponent and the punch or kick will go right through. Used only in the movies.
Bunkai Teleport "Break Up Teleport": A very cool type of teleportation where a character breaks into pieces and reappears anyplace by reassembling. This is only used in the movies.
Mini Goku: A weird attack where the user creates a little clone of Goku that mimics Goku's moves. This is only used in DBZ Movie 12. 
Ikoukan o Hatsusei: A defensive maneuver that opens a small portal in front of the user which can absorb small energy balls.
Energy Gun: An attack used by Janenba. He shoots energy balls out of holes in his chest like a machine gun.
Mini Janenba: Another weird attack where Janenba can makes hundreds of little clones of himself.
Nendouriki: No clue what this is. It's the name of one of Janenba's MANY attacks.

Murasaki Special Techniques

Tsui Ton no Jyutsu: A ninja technique with which the user can breathe underwater with the aid of a pond reed. (How Goku counters this move and the reaction it gets is hysterical.). 
Tatamigaeshi: A ninja technique which floorboards of a house are lifted up and used as a shield against shurikens.
Amenbono Jyutsu: A ninja technique used to walk on water with special foot pads.
Kakuremi no Jyustu: A ninja technique in which the user hides under a fake rock.

Namu Special Techniques

Tenkuu X Jiken or Tenkubekejiken: The user of this technique jumps high in the air, then on the way down, face forward with his arms in an "X" position, landing on his opponent with the arm "X." or A powerful aerial assault in which the user slams down on their opponent with their arms crossed in an "X" pattern in front of their chest. A very powerful technique when use on upon those without any special fighting powers.
Other Tenkuu X Jiken's: Chou Tenkuu X Jiken: A much faster and more powerful version of the above move.

Toninjinka Special Techniques

Ninjinka "Human Carrot": The ability to turn people into carrots by touching them.
Other Ninjinka "Human Carrot" : Ninjinka Kaijyou "Human Carrot Reversal" : The ability to return a person turned into a carrot, back to normal.

Pilaf Robot Special Techniques

Pilaf Robot: Bunretsu Kougeki: The ability to make continuous independently acting and thinking clones of oneself. Who can perform it: Chyapa Chyai Henkai Gatai: The ability of the three Pilaf Robots to join together to form one large Pilaf Robot, (think Power Rangers or Voltron).

Pilaf Robot 3: Kaen Houshya: A blast of fire shot from a mechanical cannon.

Kiyatapi Special Techniques

Henshin no Tame ni Sanogi ni Naru: Kiyatapi's ability to metamorphosize into a creature of incredible power. The bad part is, the metamorphosis takes 1,200 years to complete. This was used in the anime only.
Kutsuguri Kobaki: A cheap attack used by Kiyatapi the caterpillar in the anime only. He grabs the opponent and then tickles the opponent until he or she forfeits the match.

Akkuman's Special Techniques

Akumaitokosen: An attack used to find the evil in a person's heart, then make the person explode. If there is no evil in the victim's heart, then the attack is useless. This is a special energy wave designed explicitly for a quick kill of one's opponent. When the wave strikes its victim, the evil in his heart expands and causes his heart to explode.

Aqua Special Techniques

Don Demo Mizu ni Kaeteshimau Non Ryoku: This is a...unique...move used in the anime only, during the Annoyoichi Budoukai. The character Aqua, (who can't fight for beans on land), changes the arena into water and uses his fish-like body to move around quickly and pummel his opponent.

Yakon Special Techniques

Tobidatsu Tsume "Jumping Slash": Well, it is what it sounds like. Yakon jumps at his opponent, and gives a quick slash with both of his enormous blade-like claws.
Hikari Sayu Shyu: The ability to suck in an opponent's ki and eat it. Goku devises a brilliant way to counter this attack.

Tapika Special Techniques

Ultimate Speed Dash: A "psyche-out" technique where the user runs around at unbelievable speeds, trying to make their opponent afraid and force them to give up. But if it doesn't work, the user is left completely breathless and they themselves have to forfeit. This was only used in the anime during the Annoyoichi Budoukai.

Pikuhan Special Techniques

Thunder Flash: One of Pikehan's techniques that he uses during the Annoyoichi Budoukai. I have yet to see what it looks like.
Hyper Tornado: One of Pikuhan's techniques that he uses during the Annoyoichi Budoukai.

Buyon Special Techniques

Kougeki Hane Kaeshi: An attack Buyon used to bounce Goku's Kamehameha back to him with his rubbery stomach.
Nobiru Shita "Extending Tongue" : The user can extend their tongue and wrap it around someone, disabling them.

Tooro Special Techniques

Mirai o Yochi Tsuru Mabaroshi no Ken: An attack where the user must strike their opponent in the back of the neck, thus granting them the ability to see glimpses of their future. This was used only in the Bardock TV Special.

Bacteria Special Techniques

Tan Kougeki "Phlegm Attack": Yet another one of Bacterian's repulsive attacks where he tries to spit on his opponent.
Koshyuu Kougeki: The user breathes bad breath on their opponent stunning them.

Giran's Special Techniques

Guruguru Gum: This technique is used by Giran in the 21st Tenkaichi Budoukai; he spits up a strange sticky substance at his opponent. The Gum then wraps around the victim, inhibiting his movement.

Nikki Special Techniques

Tai Naibuki (Kyoudai Na Ken) "Internal Fighting Weapon" : A technique where the user rips a sword out of their body, then uses it to fight with. This is performed in the movies only.

Frog Special Techniques

Kasada o Fuku Ramatsu: A technique used only in the anime during the Annoyoichi Budoukai. The user blows their body up to tremendous proportions to push their opponent out of the ring.

Ginger Special Techniques

Tai Naibuki (2 Hon no Ken) "2 Internal Fighting Weapons" : A technique where the user rips two swords out of their body and uses them to fight. This is performed only in the movies.

Yakon's Special Techniques

Koshoku: Coming from the planet of darkness, Yakon can "eat" light using this technique. In fact, he caused Goku to go from SSJ to normal by "eating" his light. However, if he eats too much.

Misokashin Special Techniques

Chou Jyuunan Body: Not really an attack or anything, it's just the fact that the character's body is so large, they can absorb almost any attack. This is used only in the movies.

Arale Chun Special Techniques

Arale Kick: A flying kick Arale Chan used to beat up Blue Shogun.
Zutsuki: A powerful head-butt to the chest.

Oodako Special Techniques

Tako Ashi Kougeki "Octopus Tentacle Attack" : An attack used by a giant octopus. He grabs Goku with a tentacle and shakes him around like a can of soda.

Ranfan Special Techniques

Iroke Kougeki "Sexiness Attack" : An attack in which the attractive assailant removes most of their clothes in order to stun their opponent.

Kaizoku "Pirate" Robot Special Techniques

Den Ryu: A electrical attack used on Goku. The Pirate Robot wrapped its tail around Goku underwater and shocked him with electricity.

Sauza Special Techniques

Energy Shyutou: An attack where the user  forms their energy into a sword around their hand. This attack is only used  in the movies.

Murasaki Special Techniques

Bunshin no Jyutsu: A ninja technique used to make 4 completely independently thinking and acting duplicates of oneself.

Cashew Special Techniques

Kamino Bashi Waza: Some sort of  technique used by one of Garlic Junior's henchmen. I'm not sure what it is.

Ikose Special Techniques

Satsu Shin Punch: Much like the above move, this is just a big name for a typical punch that's incredibly weak.

Mirakun Special Techniques

Houtai Nage: The ability to of a mummy fighter to use their wrappings as a weapon or grappling hook. 

Ebifurya Special Techniques

Touketsuken: A blast of wind that covers whatever it hits in ice. It's used only in the movies.

Pirate Robot Special Techniques

Machine Gun: An arm mounted machine gun attack with seemingly unlimited ammo.

Oob Special Techniques

Ki Ai: An attack that shoots a wave of ki at an opponent when the user screams.

Tenren Special Techniques

Hyou ga Senpyu Chyaku: It was only performed in the Dragonball anime.

Ranfan Special Techniques

Buriiko: A flirtatious move used to stall an opponent.

Chapa-o's Special Techniques

Hasshuken: ( Goku's Techniques ).

Kaio Shin's Special Techniques

Shogekiha: (Picolo's Techniques ).

Goku & Vegeta's and Trunks & Goten's Special Techniques

Fusion: This technique is used to fuse two people into a single person, and give the fused person a huge power boost. Anyone can do the Fusion, but you have the same power as whoever you fuse with, and you must learn the correct pose and form. It's easy to make a mistake and fuse into something far weaker though. The Fusion lasts for 30 minutes before the fused person becomes two again. Dai Kaioshin has a special set of Potara (earrings) which allow people to fuse without the pose, and that lasts forever. Goku and Picolo know how to do it without the Potara but never actually did the move.

Woolong & Puar's Special Techniques

Metamorphosis: This is not really an attack, but a body transformation. You think of something (or someone) you want to turn in to and then yell: "Transformation!!" (I don’t know how it is said in Chinese) and it with a lot of concentration you turn in to it. Depending on how hard you train for this technique is the time you’ll have the power for turn in to the thing you want it. Woolong can do it only 5 minutes because he gets tired!

Everyone's Special Techniques

The Generic Ki Blast: This technique is not particularly special, but is used so much in the Dragon Ball/Dragon Ball Z world that it at least needs to be mentioned. The Generic Ki Blast is shot from the hands, and explodes on impact for a lot of damage. This is by far the most used technique in the DB/DBZ series, next to standard punches and kicks.

Bukujutsu: Not exactly a fighting technique, this is the ability to fly with one's ki. Since almost all of the fights in the second series occurred at least partially in the air, this technique is used all the time during fights, as well as being used to go from place to place. The only characters in the first series that could use it since their first appearances were Tenshinhan, Chaozu, and Picolo. Almost every one of the other characters learn to fly eventually, and by the time DBZ comes around, every major character could. Anyone who fights in DBZ except Yajirobe and Mr Satan.

Nyoibo: Not exactly a technique, but Goku uses his Nyoibo a lot in the first DB series. The Nyoibo is a magic staff that has the power to extend up to 380,000 kilometers upon command. At first Goku said "Bo yo, nobiro!" (Hey, staff, extend!) but later changed to "Nobiro, nyoibo!" (Extend, Nyoibo!).

Everyone with pure heart Special Techniques

Kintoun: While not really an attack, Kintoun was used a lot by Goku in earlier battles to get him out of tight situations. Kintoun is a magic cloud created by Karin sama. If you have a pure heart, you can ride the cloud and fly by controlling it mentally. If your heart is impure, you just fall right through it. Anyone with a pure heart can use it.

Nameks's Special Techniques

Mystic Attack: ( Picolo's Techniques ).