Batman: Revenge of the Joker

A port of the NES game. It differs from the original, and not for the better. Overall, though, the game is quite good. Batman uses different types of weapons that are knocked out of crates throughout the game. By pressing the fire button, you can amplify the volleys, and if you get enough special energy, Batman becomes invulnerable for a while. There are bosses, of course. Single-player game.