i just unlocked arcanum and have a question (actually 2):
if i reach checkpoint and use it i cant fucking go back since it wasted my badge? :E
wtf is this i thought it'll just save my progress and let me continue
so i either save and waste a badge or risk it and go without? or whats the point of saving
and since i got 10k points from event, should i instantly buy SSR weapons from shop? or its not worth it? i kinda want monika too
I'm not quite sure what you mean about going back. Each starting point has 9 stages with 3 sections in each. When you beat the 9th one, it loops back around to the 1st stage again. There's no reason to go back to any because of that, while the checkpoint at the end of each stage means that you can move onto the next stage.
As for weapons, you could buy them but they drop from expeditions fairly frequently. Monika is available to buy once you clear all the starting points in Normal and then Hard once.