If anyone ever gets too close that it is within a second, it'd be better to use how many meters they traveled instead, since it ticks up quicker and honestly just makes more sense, and you will have no issues with the timer since you would need 60000 meters for it to start being a tiny issue (1000 meters is approximately 165 seconds so you would have to live for nearly 3 hours straight)

add a new category for the "special" area in the game

The category would consist of getting as far as possible/getting the fastest time while touching the floor/roof the minimum amount of times.

you can go through ANY gap that isn't a 1x1 hole with 2 blocks, you can go though 1x1 with a saw and a block though it is very hard, so it'd make the game much more skill-based and would likely take a while to get perfect runs

P.S: touching it in a moment where it isn't required in endless would invalidate the run, but touching it in one of the worlds would mean you'd have to restart the level until you got it.