This jam originated from the joke "Okay so basically you remake the entirety of slimekeep but change the name to "Smellson Island", like a remake of Nelson Island. But here's the catch: when you press the jump button, the player farts, causing the room to become smelly, so that you can only fart(jump) every 5 seconds, maybe 2 if you bring air freshener." the original Smellson's island joke was made on May 7, therefore May 7 is international Smellson's Island day. The jam is based around that joke.