Initial instructions (can be customized in-game):
WASD for movement and mouse to aim and fire. Press ENTER to return to mission command after you have collected the bluetonium ? or defeat all enemies for additional research points and you?ll be automatically teleported back.
Additional buttons are explained in-game in the tech tree. Reading the instructions is VERY IMPORTANT just as reading the in-game tips and story will help you beat the game, but keep in mind that there are secret uses for many upgrades that you will have to discover yourself.
Purchasing Upgrades: Click on the upgrade in question and then click on ?Purchase.? You must have the prerequisites and enough research points.
Additional controls:
P to pause, -/+ to change volume, 0 to mute, and backspace to mute music (temporary)