A fun puzzle game !

I like the time switching mechanics, makes for interesting puzzles.

I think the boxes have a tendency to disappear when you switch timelines when grabbing one, makes it a bit frustrating when there's no way to complete the puzzle.

Good job !

Nice job. I like the portal like mechanics. 

A little unforgiving, imo. Would you consider either making it easier (closer and larger jumping pads) or saving progress each room?

A fun detail would be to see your own corspe in the future were you died in the present on previous runs. :)

Cheers,

I liked the idea, it even has a Portal feel, good job. I think the rules mentioned that you could't use light nor postprocessing producing colours out of the allowed colour palette though.