Classic NES Series: Zelda II Cheats

In some castles and action screens it is possible to jump higher than the stats at the top of the screen. If the spell Fairy is used when Link is above the stats and you try to move to a side, he will fall through a warp hole. In the action screens Link will simply reappear on the same action screen. While, in the castles, he will end up on top of or in another room, on top of the castle entrance, or in an elevator below the castles entrance and stuck. If he gets stuck below the castle, you will need to reset the game. Also, the spell Jump can help with this glitch.

A handy glitch in this port lets you cast spells while saving magic. When you grab a magic refill jar if you quickly switch to your spell menu, select a spell and then use it while the meter is still being filled from the jar you just grabbed the spell will be cast and the meter will continue to fill, making up for the difference in magic that the spell just used. You have to be quick to get it to work right; I've gotten this to fill it all the way back up sometimes but it appears to be based on just how fast you get it done.

If you fall off the side of the screen when you get hit, you won't die, even if your HP is at 0. Stand very close to the edge of the screen, and attack from there. You can use this to level up without the risk of losing your EXP to a gameover. Especially at screens with jumping fish.

If you need to get through a locked door in a palace but you don't have a key you can use the spell of Fairy and then fly through the gate using this glitch. Handy if you don't know where a key is or want to save time.

You can bypass a forced encounter if you enter the tile while it’s being occupied by a random battle monster. Instead of fighting through the forced encounter you will fight a random battle. After the battle, you can simply step off the tile and continue.

To avoid forced battles (battles by stepping on a certain tile on the field) simply wait in front of it until monsters appear and when one steps on the tile, move onto the tile and you'll go into a battle scene from the monster, not the tile. Most monster battle scenes are much easier than the tile's. Extremely useful when going to the Great Palace.