Save the Ninja Clan achievements

Beat level 4 with controls reversed.

Level 25, ride a cloud.

Complete 10 secrets.

Level 9, see a smiley face.

Get a knife modification.

Kill yourself with your own weapon.

Beat a level with an A+ time.

Kill 50 enemies.

Level 11, go to "prison".

Die 100 times.

Explode 50 times

Kill 25 enemies.