well i had a glitch on dragon moun i knocked em off the side well i didnt jump down and the other player was under ground and couldnt move when i stood ouve him i would spin lol and time stoped so i had to restart the game>

i had a glitch when i was with noob-smoke and i walked out of the arena and the other person couldnt hit me and i beat him

Not so sure this would be considered a glitch, but on the Falling Cliffs stage, if your opponent falls off and you are close to him/her but don't fall off with them, you can see the alive character floating in the air.

Wanna do the glitch, ive only tried it in the prison and the golden desert and sky temple but here u go...
play as Shujinko. Choose the prison, when the match starts try to knock the opponent off of the balcony with the sindel foot grab, and Voila! u can move about the outside of the ring, the prison cells, and even walk through the death trap...
Ok In the golden desert knock them off of the edge with sindels foot grab and they will be inside the walls once again, leaving you free to roam about the outside of the arena, and thru that little room, u can usually not access from under the top level, also if u walk completely around the level u can float above the cliffs.
In the sky temple knock someone off with sindel's foot grab, they will glitch up and fall through the building, and the camera will be positioned inside the building too, they will fall where they should eventually tho
I know this glitch works online, never been tested offline... Also all have been done using shujinko... i know it works in other floors including the hell's foundry. EDIT: Be very careful, most of the time but not all of the time while u are outside of the ring the opponent can hurt you, but you can not hurt them

actually on that stage, dude uppercutted me through the floor and we both ended up on the bridge outside of the death trap room.. it was kinda kool fighting there.. it only happened once tho