What is title? Is it a score loop or a level loop? How would one know when the loop happens if it's a level loop?

its a score loop

Wow, it blasts into the negatives and comes right back around to 0? That's some SM64 PU right there lol. Maybe put that into the rules so others know what a full loop is. :)

There is actually a level limit (347 levels), though it takes a very long time, probably at least 50+ hours. Completing 347 causes the game to reach the point where levels require more than 2.147B points to complete, breaking the levelling system.