It's worth noting the Wii got more and more efficient as it was revised. Original Wii without peripherals pulls about 20W, the die shrunk boards only pull about 11W!
The GitHub repo and releases are still up, just not that particular nightly.
You can just go to the Releases and use the latest stable release, v0.23.1 at the time of writing.
I haven't played any of the "Classics" like Maniac Mansion, but I did thoroughly enjoy Freddie Fish and Putt-Putt as a child. Hell, I'd rather play those today than this game.
I would personally either find a way to call the credits directly, call the Hall of Fame function directly, or rewrite a map script to trigger the HoF "organically".
Even if the technique were allowed in a meme category, it would definitely be with a more optimized payload. Fighting the Champion with a (randomized) Lv100 Darkrai is definitely not the fastest way to the HoF/credits.
The author used this example code to teleport to the Champion's room from a near-fresh save file, and entered the Hall of Fame in under 40 mins because of it. Of course this would never become an actual category.
In the future, I could see race communities using this exploit to skip intro...