Exploiting Glitches in Games

I love that Mario 64 one. I'm not sure why - but then again, it's quite hard to define precisely why one likes anything at all without using an "it's fun" or "it's nice" or something along those vague lines.

I suppose my first glitch was the afforementioned Missingno one. Yes, yes. Rare candies, Master Balls, the lot.

Next was a rather odd Zelda 64 "glitch". I use inverted commas because it's more of an invoked thing - you pull out the right side of the cartridge which allows you to walk through certain walls.

I suppose the W-Item trick could be termed a glitch. I used that to no end...

In Star Ocean, Till the End of Time, I frequently use the 'Skip-cancelling' glitch, which basically allows you to 'skip' moves in a combo. In a Star Ocean combo, every other move in a combo can be countered under certain conditions, so it's often beneficial to skip these moves despite the sacrifice in damage, as to remove the possibility of being screwed over.

In Soul Calibur II, I used (sometimes by accident) the infamous '2G' glitch which allows you to block when you shouldn't be able to. It's not generally banned because the input window seems to be in the region of four frames under 60 FPS. I also used the SCc technique to lessen the recovery on Raphae's 6BB - although that's more for the flash factor.
In Soul Calibur III, I tended to use the G22 glitch, which basically lets you cancel all or part of the animation of particular moves so that you might be able to sneak some extra hits in. It's particularly noticeable on throws - in all fighting games, throws are overly elaborate and the animation puts both characters on rails for perhaps ten seconds. If you can break out of these rails in the last, say, four seconds, it's enough to unleash a damaging combo.
I don't tend to use this against other people (unless we've agreed that we'll permit it) though.

In general, I have no moral objection to using glitches. I may opt out of using a glitch that improves efficiency on the basis that it renders the game completely dull, but if others want to use it, then I feel no need to be prescriptive in my behaviour. I suppose if it's in the game, it's in the game (alas, a display of the pinnacle of deductive logic).

Jam it back in, in the dark.