Where was it is designed around a card game that existed back in the 1980’s where you put a shuffled set of paired cards face down on a table.
From there you turn over 2 cards at a time and if they match, you remove them from the table. If they don’t match then you turn them face down again and you keep going until all the cards have been matched and no more are left.
Where was it has to main player modes, these have been designed to be simple so that kids and adults alike are able to enjoy it.