Pot Smash is essentially whack-a-mole, with a twist. You need to "hit" like 3-4 pots of the same type as quickly as possible (and don't get it wrong!) the more you do correctly, the better score you get.
And really, that's it.
There are variations, like smash the pots that form a word, or adds up to 11, and so on. Basically, is quick perception, mental gymnastics, combined with a bit of finger dexterity.
Not bad, but not that good either.