Flappy pushes a blue stone through a maze of bricks onto the blue tile while crab-like Ebira chase him — dB-SOFT’s puzzle game on the Famicom, and ten tunes.

Nothing here was transcribed by ear: every note was read out of the cartridge and is played by an emulated NES sound chip — two pulse waves and a triangle, each on a keyboard of its own.

The music and the game belong to their composers and publishers; this site only shows how the cartridge plays it, for learning.