| Game status buffer

85D1: Airborne status indicator

Initialised by the routine at 87CA, checked by the routines at 8B07, 8FBC and 95C8, updated by the routines at 90B6, 91BE and 94B0, and checked and updated by the routines at 8DD3, 8ED4 and 94D2. Possible values are:
Value | Meaning
--- | ---
0x00 | Willy is neither falling nor jumping
0x01 | Willy is jumping
0x02-0x0B | Willy is falling, and can land safely
0x0C-0x0F | Willy is falling, and has fallen too far to land safely
0xFF | Willy has collided with a nasty, an arrow, a guardian, or Maria (see 90B6)
85D1 | DEFB $00 |