Heya

Fiona's run on the leaderboard has a video, there's also some obsolete runs and other clips on her Twitch channel

I created maps of all the stages, which can be found here: https://drive.google.com/drive/folders/14guVXGd0Wz7V_M5677uAo0i8wMnwoDpu

These were generated from the game files and so should be complete and accurate, including item and enemy placement.

The subdirectories also contain images representing each level's collision data, which have been useful for glitch hunting. I collected a number of exploitable clips here: https://www.youtube.com/playlist?list=PLqfoQUYkMNUadViG7fS-gEZi_cuU-0afR (most of these were only tested on emulators)

I don't see any way to get over the upper death planes which start the death fade out far too soon, if it was just the bottom death plane it might be possible. Even when jumping off of the ghost the horizontal distance seems to long to make it past them.

Another skip I've been interested in is using the bounce pad in 5-2 to jump over the entire level with a couple of bounces. I'm sure it's possible, but I was running into the issue of falling straight through the bounce pad after a couple of jumps due to the high speed. During one attempt I clipped into the encased second part of the level, but it didn't seem reliable, and with the time spent bouncing and falling it probably wouldn't save that much time anyway.