Three Shot'em Ups

three shoot-em-up low rez joystick controlled games. They must be run from a floppy. These are all scrolling type games, each with a separate and distinct theme. GALACTIC concerns space battles (the aliens are dropping down on you and you blast them away--like Space Invaders, but more advanced), HUNTING is a Duck Hunt clone, and RIVER is a rescue mission with a military theme (much like Swiftar).