For information about the controls, check out the original project by TheSecondComing. Only four forms of the boss were programmed so far. If it gets too laggy, press C to turn off the background effects.
The music is taken straight from Treasure's Ikaruga. (You may need to turn the volume down. It's pretty loud. And yes, I know, I didn't loop it well.) The warning label flashing at the beginning is a spoof of the one from Ikaruga. That beep from the beginning is from Bullet Hell Monday. Explosions borrowed from Polaris's Bullet Hell Boss Maker Both of the shooters I mentioned are quite fun, if you can get used to their difficulty