Dipsy comes in 3 forms in this game:
This Dipsy (top) has been beheaded by Tinky Winky and covered in blood. He appears in the lobby and Slendytubbies (classic). He's the only Tubby victim to have no face at all.
This Dipsy (middle) is the enemy in Teletubby Lake. He is tall, has what appears to be black blood oozing from his eyes and mouth and a medium stone grey head.
This variant of Dipsy (bottom) is made out of 7 parts with Minecraft textures for the body and a variant of his face for his head.