It's finally here... version 10! It has got 5 brand new levels! And more are coming soon... Use arrow keys to move and jump. Collect the coins. Jump upon Goomba enemies (twice!) to beat them. Here's a walkthrough: https://www.youtube.com/watch?v=ONtHRrN-cDQ
Credits for the sprites and sounds are for Nintendo. I found them here: http://spriters-resource.com/nes/supermariobros/ and http://themushroomkingdom.net/media/smb/wav
