Sorry, but mini-games to gathering won't stop bots. Ever. They tried this in the past, both with 1.0 and FFXI, and it failed miserably in both instances. Succeeding only in frustrating the loyal customers from taking up their pickaxes or sickles, and straining the economy severely due to lack of interest and participation. Further surrendering the state of cash flow to the RMT and other such abusers.