Firstly, maybe 100/1000 levels can be added for Normal and Expert too, not sure exactly how long 1000 levels take on those modes, but we could maybe allow for TA timing methods supportive of taking breaks if it takes too long to be done in one sitting.

Same thing can exist for SE too but I can't imagine anyone's insane enough to speedrun 1000 levels on that mode, and there's no way it's possible without breaks either.

Secondly, Imagine a leaderboard counting how many levels you can beat in a certain amount of time, like 1 hour, or 6, or 12, or 24, probably only on endless so you don't just play free clears. and TA timing methods for anything longer if such a thing gets added. Several people have done 1000+ levels in 24 hours, with DSteves and Raysfire one time battling eachother to see who could get more clears on endless easy in 24 hours.

I can record my own bad runs for this if you mods want in order for a leaderboard to be made for these

the second idea of seeing how many levels you can beat in a certain amount of time isn't really a speedrun, it's more of a highscore and should be on cyberscore or something like that.