the key binds are space bar or click poke ball for Ricards. s/arrow pointing to the left to open shop and c/or arrow pointing right for close shop.
my first game hope anyone who finds this likes it. finished calling upgrades. the reason you start with one of each ball is because there's a bug that you can buy stuff for free. If you have 0 of them the price gets multiplyed by that number in this case 0 meaning its free.