Name of the mod: Natalia the Frog

Author: George Chief

Replace Natalia teddybear costume with a nice Frog costume from Haunting Ground.

Copy the Files "uPl2450.arc" , "uPl2450Head.arc" and "Fig20.arc" to:

C:\Program Files\Steam\steamapps\common\RESIDENT EVIL REVELATIONS 2\nativePCNext\arc\DX9NEXT

Make always Backup of your original files before copy anything.

Credits

Capcom
Codeman
Sectus 
Frog Costume by George Chief

Hope you like it ^^.