The premise of the game was to explore Hyrule, uncover treasure and if needs be, to fight enemies. If an enemy defeated you (decided by the number on your attack dice) you lost a heart and if you defeated the enemy, you gained one with the objective of the game being to collect as many hearts as possible.
These playing cards were given away by N64 Magazine issue 35. They were called ‘N64 Pocket Battle Cards’, and the game they played was not unlike Top Trumps. Not all of the characters were Zelda ones, there were many more obscure Nintendo characters in there, too.
This maze games was one of those small handheld games with the metal balls you had to navigate around small passages. It claimed to have three games in one, when in reality it just had two extra cardboard inserts in a back compartment.