STAY ALIVE FOR 2000 METERS
KILL 100 ZOMBIES
ALL ZOMBIES MUST SURVIVE
30 SECONDS IN THE AIR
KILL 150 ZOMBIES
30 SECONDS WITHOUT JET
APOCALYPSE
JET CHALLENGE
DESTROY 20 BARRELS
ELIMINATE ZOMBIE PARTY
COLLECT 20 FUELS
Monster must destroy
50 zombies must be killed