BKGR uses fixed point numbers for the player's and camera's position. Fixed point is 16.16 32-bit.
Id's used to create a menu with the function at 0x080424B0. r0 = menu id, r1 = language.
| id | Description |
|---|---|
| 0 | New game or continue menu |
| 1 | Pause menu |
| 2 | Save game menu |
| 3 | Language menu (unused in US version) |
| 4 | Continue or quit menu |
| 5 | Yes or no menu (multilingual) |
| 6 | Yes or no menu |
| 7 | Select file menu |
| 8 | Options menu |
| 9 | ??? |
| 10 | Minigame menu page 1 |
| 11 | Minigame menu page 2 |
| 12 | Debug menu |
| 13 | Debug info page 1 |
| 14 | Debug info page 2 |
| 15 | Debug info page 3 |
| 16 | Debug info page 4 |
| 17 | Unused debug menu |
| 18 | Debug god on off menu |
| 19 | Debug cheats menu |
| 20 | Debug transformation menu |