WASD or Arrow Keys: Movement Q: Jump and Roll Left E: Jump and Roll Right F: Fly on/off, when you have jetpack fuel. S then W: Jump Higher [Space] or 1, 2, 3: Switch Weapons C: Auto Fire on/off [LMB]: Shoot V: Sound On/Off P: Pause Game M: Main Menu If you fall from too high, you will lose life value.