Hello! I played the game today, nearly two years after playing it the first time. I had finished the game again and started work on the secret collectibles, but I ran into a problem.
I collected the one in the fire stage, died, and finished the fire stage. However on the world map, it doesn't show the level as fully completed, so I went in again, only for the game to get stuck on an ERROR screen. Restarting the game and the level, the collectible is missing (collected?), but the world map says it's not collected. If there's chance to update this soon, it'll be nice.
Also, the ending still has "athmosphere."
Thanks again for the game!