| ← 5B73 | Map | 5B82 → |
5B7A: Object scratch and step
| work_x | 5B7A | DEFB $00 | Work X: the pixel X of the spawn position |
| work_y | 5B7B | DEFB $00 | Work Y: the pixel Y of the spawn position |
| 5B7C | DEFB $00 | Unused | |
| ball_gem_frame | 5B7D | DEFB $00 | Ball gem frame: 0 while no ball gem is out, otherwise its animation frame |
| prize_on_field_latched | 5B7E | DEFB $00 | The steady copy of the on-field prize flag, latched at the end of each sweep |
| 5B7F | DEFB $00 | Unused | |
| object_step | 5B80 | DEFB $00 | Pixel step of the object in motion: its speed, less 1 above speed 1 |
| probe_block_code | 5B81 | DEFB $00 | Wall-probe result: bit 0 set when the cell ahead is solid, bit 1 set when the second probed cell is |
| ← 5B73 | Map | 5B82 → |