The first three codes only work on first life, battle mode
PAVTTZLA        Start with 1 life
TAVTTZLA        Start with 6 lives
PAVTTZLE        Start with 9 lives
SXKVPKVK        Infinite lives
SLUZTSVS        Infinite weapons
ZAUXKAPA        Walk faster--battle mode
PAUXKAAA        Jump faster and further--battle mode
AVKULAAG        Throw Tink's axe further
PASZPTIA + PASZITIA     1 star gives energy
The last three codes can't be combined
OYUUAAPG        Throw Tink's axe faster
LGUUAAPG        Tink's axe splits into 3 little ones when thrown
UYUUAAOY        Throw Tink's splitting-axe faster