Hi! I tried the latest version of the game and it genuinely feels better than ever. I can see the upgrade list and better reading on my current stats on the left screen. Also the fact that you added new shape variants for the enemy is also good! And also the boss as a pong although I do have some balancing issues on it. Lightning chain performance was definitely fixed although there's a slight lag which I think it's just the taking damage animation as the overall game performance didn't suffer any major frame drops anymore.
I feel like the boss pong moment is taking too much time to fight. It feels like an endless bouncing moment as the prediction from the AI is too easy. Maybe add some kind of hard limit for example survive until the time runs out. This was an issue when I don't have any speed upgrade on the ball. I mainly have the crit upgrade and lightning chain which proven to be useless against the boss especially the crit where it will spawn fragile balls. The fact that the boss can also trigger that is also strange and should not be necessary. It was just stalling and barely hit a score against it. Also, the boss can instantly teleport or snap to the nearest prediction area which is cheating :(
Overall, it is definitely going to a better direction. Just need some tuning and balancing on the boss side! :D