Not much is known about the gameplay other then that it will combine the character figurines and different worlds gameplay from Disney Infinity, and also will include the open world survival aspect of Minecraft.
Characters come in series, with there being 25 characters per series plus a 4 character starter pack in the first series.
Mario is a part of the starter pack. He utulizes fireballs and other power-ups, and is the most balanced player in the game.
Super Mario Bros
Maka is a part of the starter pack. She mostly uses her weapon partner, Soul Eater, to attack, and is very speedy.
Alpha is a part of the starter pack. He has a variety of different moves, such as a lightning bolt and creating a shield and using it as a discuss.
Elsa is part of the starter pack. She is a graceful fighter using her ice powers in many ways, such as freezing opponents or building a snowman to help.
A smart talking raccoon, Rocket's answer to every problem is GUNS MUTHA FUKKA! He must be bought at a store.