This blue guy is a minor character in My Adventure in Sammy's Blue World. He appears with Ilbo and Chugs, and appears to be a new recruit as he does not have a weapon and is quickly defeated by Villy Leafman.
My Adventure in Sammy's Blue WorldEdit
The Blue Guy is only seen when Villy Leafman runs up to the roof, where he is quickly defeated with a dagger. The Blue Guy's death seemed to cause Chugs to run at Villy.