| Aka: | 秘伝陰陽気功法図式謎遊戯 華佗 |
| Console: | Nintendo Game Boy |
| TV Standard: | NTSC-J |
| Country: | Japan |
| Developer(s): | Outback |
| Publisher(s): | Yonezawa PR21 |
| Release Date: | 1991-11-22 |
| Players: | 1 |
| Co-op: | No |
| ESRB: | Not Rated |
| Type: | Puzzle |
Hiden Inyou Kikouhou: Ca Da is a Puzzle game, developed by Outback and published by Yonezawa PR21, which was released in Japan in 1991.
Game Player of Hiden Inyou Kikouhou: Ca Da on Nintendo Game BoyGenerally, you can review the controls (keyboard) setting during each game in the screen before it starts. Use the arrow keys and “Z”, “X”, “A”, “S”, “Q”, “E” buttons to play, or customize yourself with your gamepad or keyboard.
| Keyboard | Controls |
| ← → ↑ ↓ | Directions for LEFT, RIGHT, UP, DOWN |
| Enter ↵ | START |
| Shift | SELECT |
| Z | A |
| X | B |
| A | X |
| S | Y |
| Q | L |
| E | R |
