0
* Extra health
ABXXYA
* All weapons
XAAYBB
* Level 2
AABXYA
* Level 3
XAYAAB
* Level 4
YYBAXA
* Level 5
BABXXY
* Level 6
XAXBYY
* Level 7
ABXBYB
* Level 8
YBBAXY
* Level 9
BYAAXB
* Level 10
XABBAX
* Level 11
YBYXAB
* Level 12
XBAXBY