This list is chronologically ordered. It is divided into mandatory bosses, then optional bosses.
Mandatory Bosses[]
| Boss | Race | Level | Location | Remarks |
|---|---|---|---|---|
| Minotaur | Jaki | 12 | Devil Busters | Reward: Orb of Silence |
| Nebiros | Night | 17 | Shelter | - |
| Jabberwocky | Wilder | 16 | Shinagawa Underpass | Reward: Solomon's Ring |
| Balam | Jaki | 29 | Shibuya | Reward: Moon Pillar |
| Vetala | Haunt | 35 | Korakuen | Reward: Earth Seal |
| Apollyon | Kaijuu | 40 | Ikebukuro | Reward: Inverted Cross |
| Leonard | Night | 30 | Ueno | Reward: Jupiter Pillar |
| Pazuzu | Tyrant | 50 | Shinjuku | Reward: Mars Pillar |
| Mammon | Vile | 52 | Gates of Mammon | - |
| Vritra | Kaijuu | 53 | Taishidou Temple | Reward: Venus Piller |
| Bael | Tyrant | 70 | Bael's Castle | Reward: Orb of Sorrow Smash the frog -> Bad End route Capture it -> Good End route |
| Tiamat | Kaijuu | 72 | Ground Zero Passage | - |
| Hydra | Kaijuu | 48 | Valley of Despair | Guards the Flood Tide Orb |
| Asmodai | Tyrant | 80 | Reward: Orb of Insanity | |
| Belial | Tyrant | 90 | Fields of Lunacy | Reward: Orb of Anger |
| Echidna | Vile | 54 | Lands of Rage | Reward: Dull Orb |
| Moloch | Tyrant | 95 | Reward: Orb of Doubt | |
| Astaroth | Tyrant | 105 | Forest of Confusion | Reward: Orb of Fear |
| Beelzebub | Tyrant | 110 | Mountain of Horror | "Bad End" route boss Refuse merger -> Bad End route Allow merger -> Good End route |
| Lucifer | Tyrant | 120 | Lucifer's Castle | "Bad End" route boss Dont recruit -> Bad End route Recruit -> Good End route |
| Asura | Vile | 100 | Suzuki Company Ltd. | "Bad End" route boss |
| Belphegor | Vile | 80 | - | |
| Satan | Tyrant | 135 | "Bad End" Final Boss | |
| YHVH | God | 150 | ? | Final Boss Obey -> Law Ending Fight -> Neutral Ending |
Optional Bosses[]
| Boss | Race | Level | Location | Remarks |
|---|---|---|---|---|
| Basilisk | Kaijuu | 31 | Ginza | Reward: Amitabha's Might |
| Nidhoggr | Kaijuu | 55 | Devil Busters 2 | Reward: Devil Analyzer * |
| Belphegor | Vile | 80 | Belphegor's Tower | Reward: Vajra |
| Mitra | Tyrant | 100 | Northwest Tower | Reward: Lucifer's Armor |