The Gachapon is a special machine that requires you to sink the Three Coins (Level 3) item into it.

Once you do this, there will be a brief wind-up, followed by a 10-second period during which you can tap on it as much as possible. Each tap can grant you a variety of points. So be quick!

After those 10 seconds pass, the Gachapon will disappear, so be sure to use it as much as you can while it lasts!