The ZX Spectrum was huge in Spain. Many good Spectrum games came from Spanish programmers, and this is one of them. A clone of the obscure Sega coin-op Bank Panic, you need just 3 keys to play, one for each door. When each door opens, you must shoot if it is a short guy with lots of hats on, or a criminal, before the door closes. Shooting them results in you gaining point. If you shoot anybody else, you lose a life. It starts out easy, and ends up really quite tense and difficult, and provides a good few hours of fun.