From Emil Chronicle Wiki

Gecko is a level 38 monster.

[edit] Stats

Basic	Combat
Level 38 Experience 350 Job Experience 450 HP 2,100 SP 255 MP 255 Behavior Aggressive	Type Animal A.SPD 2.50 ATK 180 - 220 DEF 90 C.SPD 2.50 M.ATK 200 - 230 M.DEF 150
Properties Water(20%) Item Drops Fresh Green Juice, Sticky Substance, Cabbage, Peridot, Jade, Silver Medal Skills  ??? Location Breadbasket