I enjoyed your game :) I reached Wave 60 in Endless before stopping.
The strategy was using king totem + golden balls (reading the comments it seems I wasn't alone in that, haha), with coin slots in the backpack to put back in the roulette whenever I bought a new golden ball. I got up to 700+ DMG in one ball. I understand the money cap, lol.
I had a reoccurring (2-3 times) bug where I bought a roulette slot and it bought something else alongside it, taking my money with it. Once, while I was fiddling with slot position, all shop items were put into my backpack for free. I tried to re-trigger it but couldn't, sorry!
Another bug was that sometimes the combat was done and I got sent back into the shop while some balls were still calculating -- those that were in ARM slots and calculated in the shop gave me leftover ARM for the beginning of the next wave. Way more common when you max out on balls.
Lastly, there are five spaces for slots in your backpack but the way moving slots between shop-backpack-roulette works means you always need to have one open to maneuver around, so you effectively have four slots. Basically echoing what @EnderCat3 said.
All those comments done I just wanted to reiterate that this is a good game with a very fun game loop. I really want to see it succeed! Great work :)
