Solid game. Took me 3.5 hours to beat both machines (2h45m for the first machine and 45m for the second). Very well paced without any dead spots. The game ended at a good point without overstaying it's welcome.

The upgrades add actual mechanics that make each ball unique, not just "the same thing but with more points".

The worst I can say about it is that there was a bit of a dull spot towards the end of the first machine where the upgrades were just kinda boring leveling the same multipliers repeatedly for a bit, though there was at least always some upgrade to click on instead of having to sit there waiting for points. And that dull spot didn't last too long, so it's all good.

The first machine was good, but the second machine was even better cause the game started showing some personality with the upgrades, had cooler mechanics, and was doing more interesting things with the board.

I appreciate that the game tells you when you've gotten all the non-infinite upgrades so you know when it's safe to stop.