【Touhou】 Bad Apple!! 8-Bit (NES Style Oscillator Edition)

Great tune from Touhou 4: Lotus Land Story, Stage 3 theme. It took me nearly 1 day to finish it off, used some cheesy MIDI files from internet and wrote down my own high-pitched square wave things through ear. Hypothetically, a NES machine can run it, but this thing is 1,85 MB, and the midi file is 18,5 KB. Don't know how much byte the .NSF would cost.

Isn't it weird that .mp3 file is exactly 100 times larger than the .midi file? Maybe .NSF would cost 1,85 kb. Who knows?