Kill 100 enemies
Collect 1000 coin
Complete the green world
Complete the space world
Upgrade all skills to max
Get 100 score in endles mode
Maybe try easy difficult next
Play all bonus levels
Get first emerald
Try impossible difficulty
Find secret friend
Beat the game on hard
Beat first level
Complete the winter world
Complete the desert world
Find secret tank
Beat impossible difficulty
Beat the game
Kill 300 enemies
Collect 2000 coin
Coin keep on dead max level
Get all 26 emeralds
No more
Beat game under 45 minute
Beat game under 35 minute
Unlock all tank skins
Get 200 score in endles mode
Why?
Collect 3000 coin
Blow up land mine
Play all remix levels