Finish the game in any difficulty level.
Finishing the rock and lava cave level.
Kill 50 enemies using each of Zack's powers.
Use the power of your rock punch to kill 50 enemies.
Completing the Nahirg's base level.
Use rock spikes to kill 50 enemies.
Killing a Nahirg general using only the blade launcher.
Kill 100 enemies using the flame thrower.
Finishing the outside of the Nahirg's planet level.
Find 5 nahirg treasures.
Use frozen air to freeze 50 enemies.
Killing 100 enemies with the blade launcher.
Reach Zack's suit level 20.
Finding all Nahirg treasures.
Finishing the cave level.
