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.