Astral/H3X
Member
Alright I'm fucking pissed off. This is the stupidest thing ever. Why on earth must I do this stupid minigame just to get stones? It's not even fun. I just want to evolve stuff.
Try using a Pokemon EV'd with nothing but ATK and Sp ATK.
You'll do more damage to the balloons per hit, and if you're charging them all the way up, that'll improve your times, making it more likely to get a stone.