Hmm, that one I haven't heard of before, the game just runs too fast on my laptop. Maybe the root cause is the same one though.
yeah, sometimes enemies (this becomes VERY apparent in boss fights at times) just seem to move ultra fast for a certain time then slower again and such.
no doubt this is an issue with fram rates and likely the same issue you already mentioned.
Basically enemies often jsut dont seem to have a fixed speed but jsut suddenly go slower and faster, likely linked to fps decrease and increase or such.
Wow, well done! You're the first one to get there.
There is no map sadly, I had no time to create that. All upgrades are there but some of them are behind hidden pathways. One hidden heart is in the tundra, one pair of lungs is in the water section of the coast and the last lair has one of each upgrade, each one hidden. If you want, you can get all the way back to the beginning from the final boss and get them but it might be troublesome as the area isn't designed for backtracking.