All 1 is the third part of the Famimaga series for the Famicom Disk System. The game was designed by Satoru Kataishi. You must have your ladybug character flip a pair of dice around a board until they both read 1 (hence the title).
Track 7 in the NSF file has an unused version of the Famimaga logo music. It is an extended version of the used song.
To access a sound test, simply start the game and move the top die up once, then move it back.