Thanks a lot, really glad Chapter 6 landed the way I hoped, that party was a lot of work so it's nice to hear it paid off.
On the minigames, yeah they're not perfect, I'll go back over the older ones at some point to improve them.
For Beer Pong specifically, the hitboxes are actually already enlarged. The real issue is that Ren'Py's tick system is tied to FPS, so if I use a timer other than Ren'Py's own, it starts lagging instead. I've set different speeds for 30 and 60 FPS to compensate, but I'd need to do that for every possible screen/refresh rate combination, which isn't really feasible right now. Still looking for a better solution, but I don't have one yet.
For Blackjack, it's just a pretty random game by nature, some rounds are quick, some drag on for a while, that's mostly luck of the draw rather than a bug. Early on I hadn't added the mechanic where you can come back in with a blackjack, and rounds ended up being way too quick, so this is actually an improvement over that.
You're right about the tests too, I'll fix the wording on those questions.
To answer your question without spoiling anything, yes, there will be two ways to go with Grace.