| Boss | Map | Location | Notes |
| Golem | Mine | Knock through the wall to the left of where the boulder stops chasing you | Defeat before crossing the lake in the Village |
| King Grub | Forest | Collect the Forest Cell Key from the Mine where the Golem is located to open the door | Defeat before crossing the lake in the Village |
| Queen Fly | Cave | Bomb the floor to the right of the 5 spiders | Defeat before crossing the lake in the Forbidden Swamp |
| Gargoyle | Fortress Outskirts | Lower the drawbridge in the Fortress Ground Floor | Can be defeated at any time |
| Mataeus | Library | Examine the Black Book at the top of the Library | Defeat before creating the Fire Shield |
| Phoenix | Fortress Mine | Take the long way out and knock through the wall immediately to the right of the save point | Can be defeated at any time |
| Sewer Dweller | Sewer | Collect the Sewage Restricted Zone key by purifying the small slime pool where you used the 3 Access keys | Defeat before being sent to the Wasteland |
| Salamander | Inner-Cave Network | Collect the Scorpion statue | Defeat before returning from the Wasteland |
| The Black Book | Library | Read the Occult Book in the Library | Defeat Mataeus, collect all 4 statues, read the entire monster encyclopedia and then the weapon enchantment book again |
| Azriel | Graveyard | Collect Ivan's Keepsake in the Tomb | Open the safe in the Library |
| Chaos | ??? | ??? | ??? |
There are other secrets in the game (mostly health potions), but those will be detailed in a 100% walkthrough.
