I totally agree with Jonny. It makes challenges way more interesting if they can be checked off and persisted as part of your track performance, like for the in-game tracks in Fusion.
For example, I implemented a recurring simple challenge of finding some hidden objects in some of my early tracks, cramped the challenge description into the track description, and my logic turned some lights from red to blue at the end of the track. Nothing too exciting, but a nice addition. However, I cannot see whether people actually cared about it, because replays with challenge attempts are hard to find and usually already overwritten by faster runs without challenges, and then I lost interest in adding these extra gimmicks at some point.
So the ideal solution would be to store an additional replay whenever a challenge is completed, available from the track leaderboards in some way, along with the information what challenges the player has completed across all runs.
But any minor steps in that direction that can be implemented with less effort would of course also be welcome.
Idea for an "economy solution": A little icon next to the medal on the leaderboard that is added when a "challenge completed" logic tile was triggered (or a variable increased or something) during the run.


