Mario Sunrise (SMB3 Hack)
Developed by ShemonMonk. Link in here, click "Show More".
From RHDN:
"This is a mini hack of Mario Bros 3 that aims to give the game a new vibe with a fresh coat of paint and vibrant colors. This hack contains 5 levels, and the main objective is to get to the end and retrieve the keys contained in the chests. The levels can be chosen at any order, and can be replayed once completed.
Hack was developed in 3 months. The purpose of this hack was just to try a new game to hack and showcase some cool art. Hope you guys enjoy this little project created.
Special thanks to:
Blue Finch: ASM Work for End Credits Googie Toons: Playtesting"
A short and easy hack. It looks really good, too.
Link (get it while you still can): https://www.romhacking.net/hacks/8762/