Reduce size

[danimesq]

The size of game can be incredibily reduced with these 2 magic changes:

• SVG images instead of PNG;
• MIDI songs instead of OGG/AIF;

My dream is to canvas support complete SVG images and web natively support MIDI.

[danimesq]

For MIDI, an provisory idea is use an MIDI interpreter with other feature: convert to 8-bit notes.