If you're one of those people who, despite trying hard, has never really bonded with Link's second NES quest, then you might be interested to learn that indie developer Ok Impala! has created an unofficial ROM hack that alters the game to make it more enjoyable.
There's a lot of (sometimes tedious) side-scrolling combat and the difficulty level has come under particular criticism over the decades. Zelda II: The Adventure of Link is beloved by many – so much so that it's often mentioned whenever 'Zelda remakes' are discussed – but only the most diehard fan would try to argue that it doesn't have its fair share of problems.