This is very well put together. The music is really nice and the chill vibe it has is good for this kind of puzzle solver. I cannot figure out what I'm supposed to do in what I think is the last puzzle with the three x's, but I have everything else except that last transporter because I haven't been able to get there in time to still have 210 seconds (at least, I think that's what's happening). The overall aesthetic and gameplay kept me going. I do wish there was some checkpoint in the middle, or at least something to differentiate where the transporters are, because I kept getting confused since two of them looked like the same location to me. Very nice work here!