I’ve read about/experienced quite a few repeatable incidences of unexpected behaviour but info is usually sketchy or scattered around the place. Maybe it’s a good idea to list this stuff somewhere. Know of a bug/glitch? List it here.
Zangief has a short jump ability
Abel has an infinite against Chun/Rufus
Akuma supposedly has an infinite with s.lp s.hk [edit: apparently it’s repeatable but not infinite]
Ryu can “teleport” through Boxer by FADC’ing a close standing roundhouse
Blanka can cancel from a rock crusher into a forward hop through every character except Guile (he lands on the same side)
Pressing Viper’s Taunt 1 repeatedly causes her to “hop” back a bit
Spaced just within range, there’s a slight probability that crouching forward or roundhouse will whiff against a standing opponent (any more info on this?)
Pressing 3 hits/kicks doesn’t always register as such. eg. lp followed quickly with 3p registers as lp followed by mp + fp. It doesn’t appear to have any effect on gameplay and I don’t know if this is exploitable
Any more (especially character-specific info)?