Play as Zandig
Defeat Zandig, then buy his movie in the shop to unlock him as a playable character.

All wrestlers and FMV sequences
Successfully complete career mode to unlock all wrestlers and FMV sequences.

Block 50 cons. attacks in Junkyard mission
Keep blocking until you see them charging a block break. Then, let them hit you and it will not restart your progress.

Easy money
In career mode, go to the pool area. Grab the skimmer as fast as possible and start to beat your opponent senseless. Never put it down and just keep smacking them. Eventually the match will be over and you will get about $40 per match on average. Repeat this process for a nice profit.