Probably the most untypical mission in the game. Your job is to kill zombies at the Colony Island cemetery (you get there by swimming under the Algoinquin bridge). You have to go through six stages in order to win the gold medal (two for the bronze). In each stage you get a new weapon (the ammo and armor restore themselves) and encounter new enemies. The more advanced ones run around with swords; in the last stage the zombies have Molotov Cocktails and explode after death.
19. Midtown Mayhem
35 checkpoints and only one minute to complete the race in order to win a bronze medal. The route looks like this:
20. Wetscapade TT
This time you'll jump on a jet ski and set out to conquer four different routes. Look out for the water mines. Also remember to hold the right trigger while taking sharp bends; it significantly eases the steerability.
21. Transfender Invitational
You can choose from three racing cars. After reaching the display-board it's wise to find yourself something else than the COMET pushed right in front of your face. Its steering is dreadful.