Power - First you need to turn on pack-a-punch.
Tokens - To play the games you need to have a token. The first way to get a token is if its your first time in the arcade you can knife the token machine next to the mannequin. the next way is at that token machine you can spend 10000 points. The final way is to collect them when zombies drop them.
Nacht Der Untoten - Go over to the World At War machine and interact with it. You will be teleported to Nacht Der Untoten and you have to survive for about 2 minutes. Once you kill the first wave of zombies, open up the crate that spawns. Now kill the next wave and open up that crate. Once you kill the final wave and open up the crate you will be teleported out of there.
Der Eisendrache - Go over to the Der Eisendrache machine. You will need to kill zombies in the dragon flame. Once the rocket blasts off open up the crate that spawns.
RC-XD - Go over to the machine that has a car on it and interact with it. You have to maneuver around a course and collect essence.