Ok, here's the latest status update. I am pleased to announce that resolutions up to 1280x1024 work perfectly! It's important to note, however, that you'll need an AMAZING PC to run the game at such high resolutions.

Also, certain sprites kind of don't look as good at high resolutions. Particularly certain enemies.

I'll have screenshots up fairly soon (and possibly a website), but I'm still debating the release of this app.