I liked this game! It would be a bit better with W and S instead of A and D (for me, anyway) as it felt more up-downy than left-righty.
Some of the orbs might be too close to really “read” the pattern.
Is there a win or end condition?
Viewing post in Light N Nights jam comments
The orbs need to be spaced out a bit more or easier to distinguish somehow. For instance, if your pattern was (right hi orb) followed by (left lo orb) they kind of overlap a bit. Once the pattern gets complex it’s hard to read as you approach.
Also it seems that you can never run out of light if you stay still sometimes. You hit enough random orbs that you just keep going.