Originally Posted by
ZeTo
-Rules-
-Replay must have at least one butt DM.
-Replay must be shorter than 1000 frames.
-No replay hacking.
-No replay stealing.
-Replay must be done only for this event.
-Family members are not allowed to participate.
-Selfdamage is allowed!
As the rules does not say anything about any certain gravity, you are allowed to use whatever gravity you like.
Added this to OP for clarification, thanks Victor!