MegaFenix Reloaded is based on the 1991 game called MegaPhoenix from Dynamic. The game looks a bit like Galaxian, so of course it has to be fun!
It’s portable, but it’s a bit big at 55MB. Great graphics and lots up power-ups. What’s different than traditional Galaxian is that if you get hit, you get damage points, which you have to rack up to actually loose a life. Here’s a screenshot: