Hey! Thank you for your feedback. I'm sorry for the frustration. I see that you have reached the last level. It does require a bit of dexterity.
Regarding the treasures, they can be collected once the puzzle has been solved (the timer starts at this moment). So you can spot them in the dark before going to pick them up before the time runs out.
No light (no pain), no treasure (no gain)!
Thanks for playing!