The goal of each level is to collect power-ups by clearing out the enemies on each level.

Use the map frequently to establish where you are and to determine where to go next. Look for areas with multiple blue pipe indicators. If there is a blue pipe not connected to another level, that means that a new area is available there.

Every time you find a 'save' zone, your energy and health will completely replenish.

The shockwave gun can attack walls which can take out trapped levers to unarm the laser walls.

The fire attack is extremely strong and useful for taking out large groups of robots.