Thank you for the detailed review, I appreciate it!! Did you use config to put the screen into 1280 x 960? that makes it a little bigger. The engine is called danmakufu, which is an engine specifically for shoot em ups.
Sorry about the boss, I gave it a lot of health since I wanted people to be able to hear the nice song I commissioned lol. Maybe I shall update it so that its more clear the boss is being hurt.