Often got stuck in situations where 3 photons got stranded in space, so the photon gun stopped shooting. I didn't want to reset because I didn't want to redo all the work of moving the stars (?) back into place. The result is that I couldn't really experiment, I just have to know exactly where to place the stars, and move them there quickly so the photons don't get lost while I'm moving things around. Really what I wanted was a continuous beam of light that reacts effectively instantaneously to my changes, and stars (?) that wouldn't drift while I wasn't holding them (sometimes I thought I had the perfect placement and then it changed by itself without my input).
Screenshot of me basically stuck:
I really enjoyed the clean and minimal UI, and the particle effects are very satisfying.