The game has secret rabbid skins that you can unlock through preordering the game at Best Buy or entering codes. There is one skin locked skin however that no one knows how to unlock or even what it is even after trying thousands of possible combinations.
This is the first Rabbids game not to include Rayman and the first game under the "Rabbids" title.
Achieving 100% completion not only involves collecting all items in a level but also in all 3 versions of the city hub world. What makes it so tedious is the fact that the game never tells you this and once you reach a certain point in the game, each hub disappears and you can never go back to them. Not only is getting 100% tedious, but there is absolutely no reward apart from a gold star and a in-game letter congratulating you for doing so.