Unlock Level Select: The following procedure requires editing a game file so it is advised to create a backup copy of the file before proceeding. In the bin folder in the game's directory edit the playername.zcm file. Find the number that represents the current level and edit that number into 210614544.
Unlock Shockwave Attack: The following cheat will only work on the unpatched game and in Single player mode. Hold the Shift key and repeatedly click on an immobile target while the shockwave unit charges. When the unit can fire again multiple energy blasts will be fired.