Kill 20 enemies

Kill 50 enemies

Kill 100 enemies

Kill 200 enemies

Kill 500 enemies

Play for all the characters

To die 1 time

To die 3 times

To die 5 time

Pick up 3 bonus

Pick up 10 bonus

Pick up 30 bonus

Survive 2 minutes

Survive 4 minutes

Survive 6 minutes

Survive 10 minutes

Survive 15 minutes

Survive 20 minutes

Kill the boss

Use two air strikes in a row

Explode on your own mine.