Octopus

Level   12
HP   200
MP   50
Elemental Attributes   Lightning+++

Orange Mushroom

Level   8
HP   80
MP   45

Officer Skeleton

Level   63
HP   7,500
MP   100
Elemental Attributes   Holy+++

Opachu

Level   70
HP   80,000
MP   1,000
Elemental Attributes   Lightning++ Holy++ Poison++ Ice- Fire+++

Overlord A

Level   75
HP   15,000
MP   150

Overlord B

Level   75
HP   15,000
MP   150

Oblivion Monk

Level   121
HP   115,000
MP   300
Elemental Attributes   Fire++ Poison+++ Ice+++

Oblivion Monk Trainee

Level   124
HP   123,000
MP   320
Elemental Attributes   Fire++ Poison+++ Ice+++

Oblivion Guardian

Level   128
HP   133,000
MP   340
Elemental Attributes   Fire++ Poison+++ Ice+++

Oberon

Level   90
HP   450,000
MP   300
Elemental Attributes   Fire++ Poison++

Official Knight A

Level   201
HP   3,888,889
MP   90,000
Elemental Attributes   Lightning+++ Holy+++

Official Knight B

Level   202
HP   4,111,111
MP   90,000
Elemental Attributes   Lightning+++ Holy+++

Official Knight C

Level   203
HP   4,333,333
MP   100,000
Elemental Attributes   Lightning+++

Official Knight D

Level   204
HP   4,555,556
MP   100,000
Elemental Attributes   Lightning+++ Poison+++

Official Knight E

Level   205
HP   10,424,242
MP   100,000
Elemental Attributes   Poison+++

Official Knight A

Level   168
HP   1,000,000
MP   18,000

Oz

Level   235
HP   600,000,000
MP   64,500

Oz

Level   235
HP   1,650,000,000
MP   72,500

OctoPirate

Level   35
HP   800
MP   100

OctoPirate

Level   35
HP   800
MP   100

Obstacle Mutae

Level   62
HP   7,500
MP   100

Orange Mushroom

Level   8
HP   80
MP   45

O Slime

Level   38
HP   1,850
MP   110

Orange Flying Book

Level   200
HP   99,999
MP   10

Olivia

Level   30
HP   50,000
MP   200