9e7e: ld a, $80
9e80: ld ($9a37), a
9e83: ld a, ($bbb8)   ;WRONG ADDRESS!!! SHOULD BE $bbb9
9e86: add a, $04      ;increase rate of energy depletion for new level
9e88: ld ($bbb8), a   ;WRONG ADDRESS!!! SHOULD BE $bbb9
9e8b: ld a, ($a212)
9e8e: cp $07
9e90: adc a, $00
9e92: ld ($a212), a
9e95: call $a473
9e98: ret
...
bbb6: nop
bbb7: ld a, d
bbb8: add a, $00      ;writing to $bbb8 but should be $bbb9!
                      ;instruction becomes jp z,$5700 instead of add a,$04 causing crash
bbba: ld d, a
bbbb: ld hl, $a210
bbbe: ld a, (hl)
bbbf: sub d
bbc0: jp nc, $bbd8