Awesome for something mae in 48 hours
Short and addictive. Don't listen to people whining about how "hard" this game is (they're just not from the nintendo-hard generation :P), I noticed you put in a kind of countermeasure to losing inva-I mean DEFENDERS by letting the rest fire more often and more powerful, so even 1 defender can wreak immense havoc while having an easy time dodging. The main difficulty was when the slow bullets and mines fill the screen and there are 5 rockets chasing your fleet, but everyone who has been through a danmaku/bullet hell game a la Raiden (or dare I say it? Tohou!) can get through that easily - not without losses, but you only need 1 Defender alive to win. My only complaint is it could have had better (maybe space invader-ish) sounds or music to go with it and maybe even the "player" cannon from the original as final boss of sorts!