Can you share with us the formula for the stat upgrades. I've noticed that the first upgrade costs 1, then 4, then 10, then 17, then 23 and so on. This is a sequence of 3-6-7-6-10-8-11-9-13 which is kinda all over the place. Just wanted to know the formula so that you could calculate how much the next upgrade is going to cost beforehand
...As shown in the credits, yes.