ATTENTION.

Lot of my friends already reported me a bug which makes spinner orange rooms impassable.  The reason for this is that I didn't multiply the spin rates by 'delta'.

As noted by DamianLDF, the possible solution is to change frequency of display to 60Hz.

I'm currently working on the fix.

It all seemed quite cleanly executed. Good one!

By the way, I also had problem with one room in particular, the dots were spinning too fast. The solution for me was changing the frequency of my display from 144Hz to 60Hz and then it went at a reasonable speed. It was only for that room, though (top left).

I restored the portal! :) Nice job! I enjoyed the game quite a bit. I found one of the rooms quite frustrating to back track from, but the rest were all a lot of fun. I'm impressed with the number of characters and the amount of dialog.

Nice Game. I was not really sure what the other ghosts do, maybe only environment? I had no control or performance issues. The level design was cool and collecting those keys and crystals were fun. I like especially that you do not die and instead just respawn at the beginning of the level which makes it much more fun to play and less frustrating!

another simple but well executed concept, the opposite of what I tend to do XD

Nice game! The obstacles felt challenging without being punishing.