A rather unusual shooter. As you can gather from the intro screen above, there's no power-ups or anything like that. Instead, you appear to select power-ups by holding the X key, and then entering a combination of arrows, which selects from a variety of powers, from homing, to wide shot, to shields. Arrow keys move and Z fires, but I'm not sure what is supposed to invoke the bombs, which it's indicated you have a three count of.