Super Mario and the Marvel Adventure is a minor ROM hack that features 50 stars to collect, spread out in 15 new worlds. A couple of the stars in this hack are "puzzle stars." If you're not a fan of puzzles, then this may not be the hack for you.
This hack has been updated to version 1.1 as of the 17th July 2016
If you have any questions or bugs that need to be addressed, it is best to contact me through my YouTube channel as I check that regularly (just click the video link below to take you there).