I don't agree with that definition of glitch @jerryb216 . I think about it through the perspective of Melee. If it's something the devs surely knew about or is a quirk of the engine, it's an exploit, not a glitch. So in Melee this would be why wavedashing is generally considered an exploit. You use something the devs knew about like slide jumping in a way they wouldn't have expected, like getting early bombs. Glitches usually are things that aren't supposed to be possible in the first place, even through exploitation of the engine or mechanics. Something like the Axis skew or camera lock are clear examples of that. It's all still pretty subjective though, I just think it's valuable to differentiate exploits from glitches.