One complaint. The big rabbit you defeat in the last level, it takes SO LONG to kill it, I had concluded that I simply wasn't doing any damage and needed to find some special trick to kill it. But no, it just has a LOT of hit points. You need to give SOME KIND of indication that you're actually doing damage to it. Because you shouldn't have to just shoot at something for 5 minutes not knowing if you're making progress of if you've been bamboozled into doing the dumb thing. Like the final boss in the original Commander Keen, is a vorticon that isn't affected no matter how many times you shoot it, you have to get to the top of the screen and shoot a chain that's holding up a giant platform which falls down and crushes him, but if you were just dumb and kept shooting him, your laser would just run out of power. I think. Damn, was there limited firing in that game, I don't remember, it's only been like 22 years, ha ha. But bottom line - maybe make the giant rabbit visibly take damage if it isn't going to have a power/life bar, or something. Or just not have it take so damn long. As a trade off, you could make its offensive attack higher, because as long as it took, it was still easy, because as long as you keep a steady stream of fire on it, it will stay on the right side of the screen apparently.