Having ceres, croc and ssrta in IL seems reasonable to me. Also rules for ceres would probably just be: Start from a 0:00 file with the intro sequence completed so play begins in the Ceres station. Time ends upon reaching the elevator platform and the countdown clock stops. The time on the countdown clock is your final time.
Or something like that.
Nice it looks good. I like that the design reflects deertier. I also like the idea of item icons for the top 3 (or 4). Ranking the items might be tricky though (or maybe shouldn't be thought of as 2nd place icon is better than 1st). So I agree with jack, 1st: screw attack, 2nd springball, 3rd spazer maybe?
It is a little odd that the ceres escape times are listed as XXmXXs (Probably a minor thing though). I wonder if it's possible to change that? XX'XX would be normal.