Worms Remaining: This is the number of additional Lives you have left to complete the game. There are many hidden free Lives to help you on your quest to save the Princess. Look everywhere for them!

Suit Energy: This is the percentage of energy the suit has left. When the percentage reaches zero, you will lose a Life. Whenever you are attacked by an enemy, touched by an enemy or generally do something stupid, your percentage will drop.

Plasma Rounds: This is the number of Plasma Rounds you have left to fire. If your remaining shots are less than 100, the Plasma Gun will automatically recharge itself very slowly by gathering energy from around it.