Virtual Boy controller

The Virtual Boy controller has an NES-compatible protocol, and has been used in homebrew games.

• Spook-O'-Tron
• Candelabra - Estoscerro

After strobing the controller, the following 16 bits can be read from the data line:

 0 - Low battery signal
 1 - Always 1
 2 - Button A
 3 - Button B
 4 - Button R (opposite right D-pad)
 5 - Button L (opposite left D-pad)
 6 - Right D-pad Up
 7 - Right D-pad Right

 8 - Left D-pad Right
 9 - Left D-pad Left
10 - Left D-pad Down
11 - Left D-pad Up
12 - Start
13 - Select
14 - Right D-pad Left
15 - Right D-pad Down

References

• VB Sacred Tech Scroll: Virtual Boy Specifications
• Sly Dog Studios: Candelabra - Estoscerro demo available
• Forum post: Spook-o'-tron - Virtual Boy Controller Fun