I think someone dropped Luke as a baby.
Techniques
* L-Cancelling - Not a glitch, was in SSB and SSBM, programmed into the game.
* Short hop - Was in SSB and SSBM, programmed into the game.
* Fast fall - Programming into SSB and SSBM, evend had an animation in SSB with a star, not a glitch
* SHFFLc - A combination of the above 3 along with an aerial attack to attack quickly. In SSB you couldn't fastfall during an aerial attack, but in SSBM you COULD, so you can shffl. From its procedure its not a glitch
* Crouch Cancel - Due to the programming of the physics, crouching let's you absorb attacks with no knockback at lower percentages. You can also crouch in order to stop your run and do a Smash attack with the C-Stick
*Crouch Cancel Counter - Taking advantage of the Crouch Cancel to counterattack.
* Powershield - Allows you to block and reflect any attack, humans cannot do it consistently [but can still use it], but CPU's do it all the time.
* Jump/Up-B out of shield/reflector - Programed into the game, not a glitch.
* Shield grab - Since grabbing is Z+A, while shielding you can grab the opponent to punish them for attacking your shield, not a glitch.
* Jump Canceling - Not a glitch, the initial jumping animations somehow stop your run, allowing you to do a standing grab while running. Also good for running Up-Smashes.
* Smash DI - programmed into SSB and SSBM, letting you survive to higher percentages
* Automatic DI - Hold the Control Stick during your flight to alter your angle, programmed into Melee, allowing people to escape combos easier.
* Rising Pound - Using DI on Jiggly's pound to float up on your pound, as DI isn't a glitch neither is this.
* Wall Bombing - Using Peach's side B to scale a wall, not a glitch, the physics just work for it.
* Desynch - Now this IS a glitch, but it actually makes the Ice Climbers worthwhile [without it they suck]. You can control Nana and Popo seperately.
* Wobbling - Using Desynch to grab infinitely with the Ice Climbers, however even then the Ice Climbers aren't that overpowered [but pretty strong].
* Wavedash - Most argued, although the physics itself is intended, the use of it is not, the developers didn't know a good thing when they saw one.
* Waveshine - Combines wavedash and reflector for sweet combos.
Banned in Tournament play
* IC freeze glitch - The Ice Climbers can halt the movement of one character, beat them up inifinitely [they are still in midair], then grab to finish off
* Infinite stalling with rising pounds and wall bombing.
And there are even more techs,