| Altair | Summons and hurls eagles. | 22 | Floating Garden (Room connected to save point in floating area of Garden) |
| Arachne | Ensnares enemies using a sticky web. | 15 | Study, Dance Hall (First hallway in Dance Hall) |
| Axe Armor | Throws axes at enemies. | 22 | Castle Corridor, Chapel (Room in between 1st and 2nd save points in Corridor, before 1st boss room) |
| Balore | Packs a deadly punch. | 120 | The Arena (Defeat Balore) |
| Bat | Attacks using supersonic waves. | 5 | Castle Corridor, Chapel, Underground Reservoir (Room left of 1st save point in Corridor, several Bats in the room) |
| Beam Skeleton | Fires a deadly beam. | 28 | The Arena, Chaotic Realm (Third Arena challenge near save point, third and bottom door) |
| Biphron | Shoots out a series of exploding fireballs. | 35 | Underground Cemetery (First room in Cemetery, enter from left) |
| Blue Crow | Attacks by flying crows at enemies. | 10 | Castle Corridor (Vertical room above 2nd Corridor save point) |
| Bomber Armor | Astounding amount of destructive power. | 80 | Clock Tower, Underground Reservoir (Four rooms left of first Tower save point) |
| Chronomage | Ability to stop time. | 96 | Inner Quarters (Hallway right below Quarters save point) |
| Cockatrice | Fires a beam of petrifaction. | 24 | Floating Garden (First large room in Garden) |
| Demon Lord | Unleashes a furious barrage of magic upon enemies. | 38 | Chaotic Realm (Several rooms near 2nd and 3rd save point in Realm) |
| Disc Armor | Shreds enemies to bits with a spinning disc. | 34 | Inner Quarters, Floating Garden, Clock Tower (Room left of first Tower save point) |
| Dryad | Grows stronger by stealing HP from its enemies. | 33 | Underground Reservoir, Forbidden Area (Two rooms left of Reservoir warp point, enter from left) |
| Durga | Throws katanas. | 20 | Chapel, Dance Hall, Inner Quarters (First hallway in Chapel, enter from left) |
| Evil Butcher | Throws sharpened butcher knives. | 5 | Study, Dance Hall (Horizontal hallway up/left from lower Hall save point, enter from right) |
| Fish Head | Shoots fireballs. | 18 | Underground Reservoir, Forbidden Area, Chaotic Realm (Bottom right corner of large square room on far right of Reservoir) |
| Flame Demon | Burns enemies to a crisp with its ultra hot flames. | 44 | Underground Cemetery, Forbidden Area (First room in Cemetery, enter from right) |
| Fleaman | Hops around madly. | 15 | Chapel, Dance Hall (Hallway above entrance to Study, enter from left) |
| Ghost | Summons a spirit that will fight evil. | 16 | Castle Corridor, Chapel (First hallway of Chapel area) |
| Giant Skeleton | Throws giant skulls. | 19 | The Arena, Chaotic Realm (Few rooms before 2nd save in Realm, room left of Gladiator and Basilisk) |
| Gladiator | Throws wheels at enemies. | 30 | The Arena, Chaotic Realm (Two rooms right of Arena warp point) |
| Harpy | Shoots out razor-like feathers. | 25 | Clock Tower, Forbidden Area (Hallway that connects Clock Tower to Top Floor) |
| Killer Doll | Mesmerizes the enemy. | 20 | Castle Corridor, Dance Hall, Inner Quarters (Vertical room left of bottom save in Hall, enter from bottom left) |
| Killer Fish | Attacks enemies underwater. Perishes when out of water. | 16 | Castle Corridor, Underground Reservoir, Forbidden Area (First long water corridor in Reservoir) |
| Killer Mantle | Ability to swap HP and MP of enemies. | 19 | The Arena (Room outside of Arena save point) |
| Kyoma Demon | Temporary invincibility. | 80 | Hallway to right of Quarters warp point, enter from left (The Kyoma demon is the monster that appears inside certain mirrors) |
| Legion | Fires an array of lasers. | 66 | Underground Cemetery (Defeat Legion, you must knock off all 4 shells) |
| Lightning Doll | Discharges lightning from its fingertips. | 46 | Inner Quarters, Clock Tower, Underground Reservoir (Starting from 2nd Tower save, travel 3 rooms towards 1st save, 3rd room) |
| Mandragora | Kills enemies with scream. | 110 | Floating Garden, Underground Reservoir (Room directly below Reservoir warp point, you have to kill it when its out of the ground right before the scream) |
| Man-Eater | Shoots a ripple laser. | 22 | Underground Reservoir (Exit the bottom right of large room outside of Reservoir warp point) |
| Merman | Fires a water pistol. | 14 | Castle Corridor, Underground Reservoir (Room left of 1st save point in Corridor, in water pit) |
| Mudman | Slings mud at enemies. | 20 | Forbidden Area (First hallway in Forbidden Area) |
| Needles | Tosses mines into the air that explode at fixed intervals. | 15 | Clock Tower, Underground Reservoir (Two rooms left of Tower warp point) |
| Nemesis | Cloaking shield makes you invisible before enemies eyes. | 65 | Dance Hall, Inner Quarters (Vertical room right of Quarters save point, enter from bottom) |
| Nightmare | Summons nightmares to use as weapons. | 30 | Underground Reservoir |
| Red Minotaur | Swings an oversized axe. | 150 | The Arena, Top Floor (Mid level area of large open area of Top Floor, enter from right, the Killer Mantle soul will kill them in one hit) |
| Ripper | Stabs enemies with a blood-soaked knife. | 35 | Floating Garden, Underground Cemetery (Room connected to save point in floating area of Garden) |
| Rock Armor | Tosses boulders at enemies. | 22 | Castle Corridor, Chapel, Study (Horizontal hallway below 1st Chapel hallway) |
| Siren | Song casts a spell upon enemies. | 10 | Castle Corridor (Hallway that connects Clock Tower to Top Floor) |
| Skeleton | Throws bones. | 8 | Castle Corridor, Chapel, Underground Reservoir (Several long hallways in Corridor after 1st save point) |
| Skull Archer | Fires enchanted arrows. | 8 | Castle Corridor, Study (Vertical room above 2nd Corridor save point) |
| Skull Millione | Weakens its enemies with its poisoned claws. | 25 | The Arena (Room outside of Arena warp point, enter from right) |
| Slime | Hurls slimeballs at enemies. | 20 | Underground Reservoir, Chaotic Realm (Two rooms right of Flesh Golem in Reservoir, see Flesh Golem) |
| Student Witch | Releases a lethal cat that runs full-speed at enemies. | 20 | Study, Inner Quarters (Hallway in Quarters just before Top Floor entrance) |
| Tiny Devil | Creates a blade vortex around its foes. | 18 | Castle Corridor, Chapel, Underground Reservoir (Hallway leading to 3rd Corridor save point, enter from left) |
| Ukoback | Sets fires in mid-air. | 12 | Underground Reservoir (Vertical room just before entrance to Underground Cemetery) |
| Une | Buries land mines throughout its turf. | 20 | Chapel, Underground Reservoir (Horizontal hallway in Chapel below 1st save point) |
| Valkyrie | Slashes enemies with its sword. | 50 | Inner Quarters, Clock Tower (Room above and right of Headhunter boss, enter from bottom) |
| Waiter Skeleton | Slings hot curry at its foes. | 30 | Dance Hall (First hallway in Hall) |
| Werejaguar | Packs an extremely powerful straight punch. | 40 | Underground Cemetery, Forbidden Area (First room in Cemetery, enter from left) |
| Weretiger | Packs an extremely powerful uppercut. | 40 | The Arena (Long hallway at very top of Arena, has entrance on left only) |
| Werewolf | Creates a fountain of magical fire. | 28 | Floating Garden (First floating area near top of map if you exited left from Garden) |
| Winged Skeleton | Throws spears. | 12 | Castle Corridor (Obtained during game intro sequence) |
| Zombie Soldier | Throws hand grenades. | 14 | Castle Corridor (Long hallway above and right of 2nd Corridor save point) |
