At the password screen, enter the password: ANCIENT.
AXOLOTL - First Boss BLUTEN - Second World SCARAB - Level 8 REMORA - Level 15 PANGOLIN - Level 16 DEWLAP - Level 17 MINORCA - Level 23 ELYTRON - Level 24 GILA - Level 25 HYDRA - Level 32 IBEX - Level 33 JEDOCH - Top of the Tower ZAHNDELA - Final Boss