This was surprisingly fun, once I figured out how to play it (thanks, comments!). It's a great example of a barebones so bad it's good game that punches above its weight class. I got to level 10 before I had to quit. Normal bullet hells give me eyestrain; I can't play one that's all bright, high-contrast colours for more than a few minutes.
EDIT: Also, props to the brutal honesty about implementing the modifier.