Froggit, an enemy from the game Undertale.
A good amount of guessing at the end! I'm going to post a comment to help with that.
I am going to make more of these, so if you have any suggestions, please say them! I will not do main characters and overworld only characters though. (Sans, Asgore, Mettaton, the river man, etc.)
http://imgur.com/WTW7V72.