This is a big project with 1100+ assets, so you might want to try running it in Turbowarp: https://turbowarp.org/898299485 ++++++ Mario's controls are all shown in-game from the title screen Up arrow to go in doors P key to pause in a level or the world map (and yes, you can still hold shells/springs with Z) ++++++ To beat Bowser, avoid his attacks until he leaps high into the air; when he charges back down, he'll flip himself over and you can jump on his belly. Do this 3 times to defeat him. ++++++ Stuck? Here's a 100% walkthrough of the game: https://scratch.mit.edu/discuss/youtube/O5iDDmmcfFA/