Like every other platformer game, use A, D, or the Arrow Keys to move and use Up Arrow Key or W Key to jump! It's just a sandbox though. Also you can fall off the worlddd!!
Credits to JoshsAccount for the Mario Font and Credits to New-Scratcher for all sounds in this game, also credits to Gamer1991 for the Original Mario Bros. Music, lastly, Credits to Marshmallow012345678 for the Death Sound Effect!!! If these people are reading this, thank you and you are awesome!!
