Power Mission

Power Mission
Developer: Graphic Research Publishers: Vap (JP), NTVIC (US) Platform: Game Boy Released in JP: August 24, 1990 Released in US: January 1991 This game has a hidden sound test. This game has regional differences.

Sound Test

Enter GRCGRC (US)/BAKKIN (JP) as a password. The sound test seems to be a bit broken, as the Background Music and Sound Effect listings have the same tracks.

"GRCGRC" is a reference to the developer. The word "Bakkin" refers to Fumito Tamayama, the game's sound designer, who often used the name as an alias.

(Source: cah4e3 (US password))

Regional Differences

Japan	US

This is another in the long list of games that fell victim to Nintendo of America's password system censorship, in that all of the vowels were removed.