Reach level 6 in single player mode

Reach level 12 in single player mode

Reach level 18 in single player mode

Reach level 24 in single player mode

Reach level 6 in coop mode

Reach level 12 in coop mode

Reach level 18 in coop mode

Reach level 24 in coop mode

Destroy 10 robots with a single bomb

Destroy 60 robots with a single lightning

Have 40 mines planted

Revive you mate 3 times in a game

Revive your mate during the clock effect

Reach level 6 using only pistol