Original Mario Hack (aka OMH) is a ROM hack by Team JANK. Download it here (Might not work because hack isn't accepted yet): https://www.smwcentral.net/?p=section&a=details&id=35050
OMH was a very challenging and fun hack. I definitely recommend playing it. If you haven't though, you might want to play R-ACK first, since it is the first game of this series. In case you're wondering why I did this first if R-ACK is first, I just personally like this hack more, and couldn't wait to do it after R-ACK. This hack is very impressive in terms of going out of bounds of Super Mario World hacking. Most of the stuff in this hack lots of people don't even know how to do. The title screen was made to be a whole cutscene, an SMB2 level with four different levels (not just exits, completely new levels that count as exits) a level that lets you drop a key in a portal in one level and you get that exact same key in a completely different level, etc. It's just very impressive and very fun.
This is the hack where I learned to master the cape, very specifically the level named "This pipe keeps getting in my GODDAMN MFING WAYY LIKE JES" taught me. So until that point, caping isn't amazing, but it's still pretty enjoyable. Also, the Overworld movement could use some improvements. I didn't necessarily go and find the best Overworld route due to shops and stuff, and I personally didn't have the time for that.
Frame count: 501767
True rerecord count: 122418