Anyway, While i was expermenting with sprites and XJJ2 I found these odd things.
Purple Potion
TNT crate(like a ammo crate)
Eva Jumping(or something...)

Thats about it for now.
The Things I used are

CA F0 00 00 (potion is shown while swimming)
8d 00 00 00 (For some odd reason only works in capture1, shows tnt crate and eva jumping)

Well, that's my first post on the fourm.
P.S:Try them for yourself if you know how(and have XJJ2.)and how do you post pictures?