One of my favourite games ever is Zelda A Link to the Past for the Super Nintendo, heres an excellent rom hack of that game, heres more info:
Love it or hate it, you’ve probably heard of it. Parallel Worlds is by far the most popular full-game hack of A Link to the Past released to date. Today, in honor of the 10-year anniversary of its original release, the hack has been updated to add several new gameplay mechanics, and to attempt to address many of its long-standing issues.
Some of the new features include:
Full CD-quality soundtrack via MSU-1 audio support
Stun enemies by hitting them with your bare fist (no sword)
Upgraded AST-Style Pegasus Boots
Break pots and collect items with the sword
Shovel is now usable, with random treasures
Loading your game starts with full health instead of half
Able to save the game at any time, no need to get the sword first
Backtracking from the top of the Parallel Tower is possible (eliminates an extra climb for the Kokiri Emerald)