From Emil Chronicle Wiki

Infinite Corridor Roper is a level 12 monster.

[edit] Stats

Basic	Combat
Level 12 Experience 5 Job Experience 3 HP 96 SP 1,000 MP 1,000 Behavior  ???	Type Plant A.SPD 2.00 ATK 21 - 31 DEF 37 C.SPD 2.00 M.ATK 19 - 30 M.DEF 59
Properties None Item Drops  ??? Skills  ??? Location Infinite Corridor