There are many levels in this game that are remakes of some previous Mario Game levels. Like 1-4, Part 1 and 6-4. Even 2-3 is a remake of a level from 2010. Okay. In Super Mario Bros 2010, you may not remember it because it was only accessible when you beat the game and return to Peaches castle. You would talk to a toad and take a shortcut under the desert(world 2). There were five secret levels. 1-Cave, 2-Core, 3-Lake (An extension to the world 2 shortcut that was suppose to carry on to World 8 but never happened.), 7-Cannon, and the Inner Tower super special secret level only very few will find(this level ruined the game). Anyways. There is at LEAST one remade level in each world. Do you know the levels there really from?
Super Mario Bros 2010 2011 Galaxy 2 fangame updates news Luigi Peach