| Boss | Original | Easy Type | Wonderswan Color | Game Boy Advance |
| Mist D. |
 
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| Girl
Titan
|
 
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|
 
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| General Soldier |
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| Octomamm | 
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| Antlion |
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| Bomb Mom Bomb Gray Bomb |
  
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| Captain Fighter |
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|
 
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| Milon Ghast |
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| Milon Z. |
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| D.Knight |
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| Guard |
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| Karate |
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   |
Baigan
Right Arm |
 
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    |
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| Cagnazzo |
 
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   |
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| Dark Elf Dark D. |
 
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  |
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| Magus Sisters Dog Mag Rag |
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| Valvalis |
 
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  |
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| Cal
Brina Calbrina
|
  
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| Golbez
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  |
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| Dr. Lugae
--- Balnab --- Balnab-Z |
  
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| Lugaborg |
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| Dark Imp |
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| K.Eblan
---
Q.Eblan |
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| Rubicant |
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| Asura |    |
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| Leviatan |
 
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| EvilWall |
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| Bahamut |
 
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  |
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Milon Z.
Rubicant
Cagnazzo
Valvalis Elements |
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 |
 
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| Attacker
Defender |
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| Odin |
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   |
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| Storm Dragon |  |
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| Gigas Worm |  |
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| Master Flan
Black Flan White Mousse |
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| T-Rex |  |
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| Death Mech |  |
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| White D. |
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| Wyvern |
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| Plague |
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| Lunasaur |
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| Ogopogo |
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| Zemus |
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| Zeromus |
 
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| Dark Kain |
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| Lunar Bahamut | 
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| Lunar Leviathan | 
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| Platinum Toad |
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| Lunar Odin | 
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| Lunar Asura | 
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| Soldier Monk |
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| Soldier Monk |
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| Super Monk |
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| Super Monk |
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| Drillmaster |
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| Drillmaster |
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| Lunar Titan | 
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| Titan |
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| Shiva |
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| Ifrit |
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| Ramuh |
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| Lunar Dragon | 
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| Lunar Ifrit | 
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| Lunar Ramuh | 
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| Specter (Multiple Battles) |
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| Lunar Shiva | 
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| Zeromus EG |  |
