| Player | Button | Byte | Bit |
|---|---|---|---|
| p1 | start | 0 | 0 |
| a | 0 | 1 | |
| b | 0 | 2 | |
| x | 0 | 3 | |
| y | 1 | 0 | |
| L1 | 1 | 1 | |
| L2 | 1 | 2 | |
| R1 | 1 | 3 | |
| R2 | 2 | 0 | |
| select | 2 | 1 | |
| L3 | 2 | 2 | |
| R3 | 2 | 3 | |
| hotkey | 3 | 0 | |
| X1 | 3 | 1 | |
| X2 | 3 | 2 | |
| p2 | start | 2 | 6 |
| a | 2 | 7 | |
| b | 3 | 4 | |
| x | 3 | 5 | |
| y | 3 | 6 | |
| L1 | 0 | 4 | |
| L2 | 0 | 5 | |
| R1 | 0 | 6 | |
| R2 | 0 | 7 | |
| select | 1 | 4 | |
| L3 | 1 | 5 | |
| R3 | 1 | 6 | |
| hotkey | 1 | 7 | |
| X1 | 2 | 4 | |
| X2 | 2 | 5 |