As long as we're talking Virtual Boy, I'll plug my QoL patches for Virtual Boy games.
Most of the patches are for adding save support, which covers the following games:
- Bound High!
- Golf
- Jack Bros.
- Mario Clash
- Nester's Funky Bowling
- Red Alarm
- Space Squash
- Vertical Force
- V-Tetris
- Waterworld
In some cases, this amounts to saving your high scores, since a lot of VB games are very arcade-style and don't really merit saving progression. However, for a few (Bound High, Golf, Jack Bros., Mario Clash and Space Squash), your gameplay progress is saved. These games are greatly improved by the addition of save support.
There's a couple of other patches which aren't save-related:
-
For Bound High!, there's a debug patch which unlocks all of the dummied-out debug features left behind in the game. While they are cross-compatible, I don't recommend using this in conjunction with the save patch because entering the debug codes to have all stages completed will also overwrite your save data. I suggest patching two different ROMs, so you have a debug ROM without saving, and a retail ROM with saving.
-
For Hyper Fighting, there's a bug fix patch to correct the brightness setting.