Ok, we know that a lot of games have glitches, this topic is where you can post your tried and true glitches. For the PS2 that is. Post them in this format.

Starwars Battlefront II-In the arena in Mos Eisley Assault, follow the topmst bridge that is connected to the floating ship in the middle. Jump off of the end straight at the wall, and you will go through it.  There is an invisible ledge here.