Clear level 1-1.

Clear level 1-4.

Unlock every dragon.

Defeat 500 dragons. (If you were a dragon, you'd be dead. Err, wait...)

Defeat your first dragon. (At least it's more economical than making soup out of their fins.)

Play at maximun level of dificulty.

Get 50000 points.

Beat stage 2.

Defeat your first dust bunny.

Get 30000 points.

Level up.

Play at maximun level of dificulty.