Level Codes: Level 1: MANTIDS Level 2: CICADAS Level 3: PSYLLIDS Level 4: KAVERNS Level 5: SATYRID Level 6: LYCAENID Level 7: PYRALID Level 8: NOCTUID Cheats (type during gameplay): "MERCURY" = auto-flight "JUPITER" = unlimited time "MARS" = weapon select "PLUTO" = unlimited ammo