Doing It for the Art: The graphics in the 2009 game. Every movement of the Boy, the Blob, and the enemies is lovingly hand-drawn. The backgrounds exquisitely painted. The developers said they wanted a deliberately nostalgic, warm feel, and knew only traditional animation would get them that. And it looks awesome#$)* @& AWESOME.
WayForward has had a history of this, with their previous game Shantae.