Robo Slug 2 is one badass arcade action game! Use W.A.S.D. or arrows to jump and run, mouse to aim and shoot and hit the number keys to select weapon.
Game Controls for Robo Slug 2
Use WASD keys (or ARROW KEYS) to move left and right, jump and duck. Use the MOUSE to direct fire. Use Numbers 1, to 6 to change weapons. You need to unlock weapons first, one new weapon is unlocked at the end of every level. The MOUSE WHEEL will also change weapons.