Hi, thanks for playing the game!
But can you be more specific of what you mean? I'll try to fix it as soon as possible. I just don't understand what does "stops upgrading after a while" mean.
I mean like when you upgrade it enough it stops adding bounces but still costs money. I can't figure out how many bounces until it stops adding more but for example if you bought the riccochet 20 times it should bounce 20 times but after maybe 15 or whatever the limit is it just stops bouncing even if you upgrade it more