Here are some cheats and tips for the game Karnov.
SXKISXVK Infinite lives
GZVZNIVG Freeze timer
LEEGOYPA Gain 3 of most items
AEOKSYPA Never lose most items
PAUSAAAA Start on stage 2
ZAUSAAAA Start on stage 3
LAUSAAAA Start on stage 4
GAUSAAAA Start on stage 5
IAUSAAAA Start on stage 6
TAUSAAAA Start on stage 7
YAUSAAAA Start on stage 8
AAUSAAAE Start on stage 9
AAOSIAZA + AESIVTZA Start with 1 life
IAOSIAZA + IESIVTZA Start with 6 lives
AAOSIAZE + AESIVTZE Start with 9 lives