Defeat an enemy by jumping on its head (on any difficulty).

Destroy an enemy using the shuriken weapon (on any difficulty).

Eliminate an enemy using the grenade weapon (on any difficulty).

Defeat a total of 10 enemies (on any difficulty).

Collect a total of 100 gems (on any difficulty).

Eliminate all enemies in the first world (on any difficulty).

Defeat the first boss (on any difficulty).

Conquer the first world (on any difficulty).

Eliminate all enemies in the second world (on any difficulty).

Defeat the second boss (on any difficulty).

Conquer the second world (on any difficulty).