reincarnation upgrades are far too weak, to the point of feeling useless, with how long it takes to get RP to spend on them, and it makes it difficult to make any meaningful amount of progress. furthermore, xp and gems, which do actually help, are incredibly slow, which also makes progress glacial.
Extremely like this game and am willing to tolerate e.g. an entire reincarnation taking more than one square, but the fact that RP cannot really get around the fact that ultimately you NEED to buckle down and get all the way to the final green square... oof. I seriously think even just a milestone at 9 pink rows could help a lot without compromising other things.