Heavy Gunner has you scrolling back and forth at the bottom of the screen, fighting for your life as tons of enemies from space rain down their coolest, toughest weaponry. Power-ups will fall down and you'll want to grab those for spread shots, rapid fire, lasers, and to grow bigger and more powerful. The health power-up has a red cross on it and you'll need it because this game gets crazy really fast. When your bar at top is completely blue, use the space bar to bomb the entire screen. Keep your health up and use the power-ups as much as possible to destroy the constant attack from your enemies.