Hi, it's too hard to upgrade accessories, and ultimate weapons, when i tried yesterday, i upgrade my demol +10 after 60 tries ... and upgrade ultimate +2 after 30 tries, i've the same problem for upgrade my weapons with element, when i come to +10, it's only failure failure failure failure ...
please, change upgrade, it's too difficult now. Thx
Sorry for bad english, i'm french X_x
to resume :1) up the rate to sucess upgrade ultimate weapons
2) up the rate to sucess upgrade accesories
3) up the rate to element >+10