Family BASIC © 1984 Nintendo.
The consumer product for programming Nintendo's FAMICOM. Providing a dialect of the BASIC programming language, the application cartridge was originally bundled with a computer style keyboard and instructional textbook, and requires a cassette tape recorder to save user-generated BASIC programs.
Family BASIC was released on June 21, 1984 in Japan.
It was the first special cart Nintendo made for the system. It's also the first cart that uses 32 KB of PRG. Additionally it provides 2 KB of battery-backed PRG RAM. It is the first cart to use either PRG RAM or battery backup.
Secret games (V3 version only):
Enter following commands to see a hidden built-in games.
GAME 1 - Unfinished game 1.
GAME 2- Unfinished game 2.
GAME 2,1 - Complete finished game 1 + 2 Mario-type.
GAME 3 - Complete finished game Shooter-type.
Game's ROM.