CODE/EFFECT . . .
SZUYPZVG/Don't take hits from bullets
SXVTXZVG/No hits taken in hand-to-hand fights with most enemies
XZVSAYVZ + PAVSPNTT + AEKSZYIE/Start with an energy boost
XZVSAYVZ + PAVSPNTT + GEKSZYIE/Start with a super energy boost
ZASILYPA /Mystery location 1
GASILYPA/Mystery location 2