Laser Lab

I played the first six levels. I like the progression of the puzzles. I was confused at the beginning, i kept clicking the mirrors trying to fire the laser at them only to realize you have to click anywhere BUT the mirror to fire the laser. Also when i popped all the bubbles, there's a bit of a pause before the win sound effect? It left me wondering if i'd found everything or not only for the music to jump scare me a bit haha. Speeding that up to be more instantaneous might hit home the sense of completion and speed you to the next level. Very cool!

The pause at the end of each level is odd but should be an easy fix.
The graphics feel too close to the old 2000's flash game aesthetic which isn't necessarily bad but it did make it hard for me to take the game seriously at first. A lot of images have a bit of noise about them which makes them look just a bit off.
As far as puzzle elements go, the mirrors and quantum relocators were great tools, though the dark matter and whatever randomised the laser's direction felt more like frustrations than actual obstacles or tools. The dark matter just made it more important to aim very particularly, which could have been done with regular wall blocks instead of including an energy system (which doesn't seem to come into play very much, and for a thinking puzzle might be unecessary), and 'hoping for the best' is counter-productive for a puzzle game. The level it was introduced in was literally a matter of pointing the laser and waiting for the puzzle to accidentally solve itself, which isn't fun or rewarding.

The auto-spinning mirror was a nice touch, ie something that can't be used by the player but worked with/around, but again it was a case of letting the puzzle solve itself. If the bubbles in the laser's line of sight were all popped immediately it wouldn't feel this way, but since the laser could only reach one ball at a time (ie. it needing a few frames to burst, allowing the laser to have moved by the time the next one isn't obscured) it turned into a waiting game - particularly because the mirror I was using directly blocked the scientist from any danger and I didn't have to think about anything while waiting for the mirror to rotate again and again and again.

Puzzles becoming waiting games, ie necessitating you do nothing while the laser goes, makes the energy bar even less necessary since even waiting as long as I did for the mirrors to rotate or luck to be in my favour, the energy bar never depleted. In later levels this might be different, and conserving energy might turn into an actual element of the puzzles, but in every level I played it didn't matter at all.
Consider not showing/using the bar at all in levels that don't involve an element of conservation to solve, as while it isn't it looks like a meaningless addition - and, if conservation isn't part of the puzzles at any point, it just is.

Nice and original. I played the first few levels, nice to see new devices and tricks each time, that keeps the momentum going.
It is pretty easy to understand how it works, no tutorial required.
It may lack a little story around it to be more than just a level-after-level kind of game, but fun anyway.
The only thing that could be improved a little is the design which is nice but could be improved.