Kirby-R.O.B. up throw glitch
Currently, this glitch is only known to be able to performed in one way, though there are probably others. One character (preferably human, as a CPU may take forever to Kirbycide) must be Kirby. The other must be ROB (Either CPU or human, no great reason to prefer one over the other). The stage selected must be Hyrule Temple/Temple. Have the Kirby go into the bottom part of the stage and stand on the LEFT side of the small floating platform to the right. It is imperative that you be on the left, or it will not work. Then have the ROB come down into grabbing range of Kirby. Have Kirby grab ROB and do an up-throw. The result should be that Kirby will jump up, miss the stage, and then end the attack just under the platform, as if he hit solid ground. This does not work with Meta Knight.