Third world looks very, very nice. Trix's visuals are exceptionally great (as always) and add a lot to the atmosphere. Really love that blue color.
Those empty "air boxes?" are a very interesting mechanic, and I enjoyed getting to the hard-to-reach areas (I did not expect to get G'd lol). I would love to see it being used more in future in various ways (for example, an empty room with individual floating water boxes in it sounds interesting).
Spike hitboxes together with "boost orb" misalignment are still a bother, sadly. It's still extremely hard not to get hit on this
and this screen
because of those issues.
Either way, my current speedrun record is 01:18:67! (It seems like speedrun timer doesn't work correctly - 1 second on the clock is equal to 2 real-life seconds).