Eclipse is a combination of Sun and Moon, the Daycare animatronics that work at Superstar Daycare in the Mega Pizzaplex.
Sun was the light, Moon was the dark, Eclipse is the balance.
The Daycare, along with the Mega Pizzaplex, is ruined. Eclipse still thinks the Pizzaplex and Daycare are open, despite the messy state.
Eclipse can attach himself to a wire on the ceiling to glide around flawlessly the Daycare, letting him carry children or even adults around safely.