Daedskin
I'm sure there were other consoles that did it, but the one I remember is the NES; it had a physical switch on it for channel 3 or 4, and you had to have your TV tuned to the respective channel to get the game to show up. As to why that was necessary on a technical level, I'm not sure. But it was a thing you had to do.
I remember abusing the pause bug, so I don't actually remember how hard it was without that
They actually don't have last names; their full names are Mario and Luigi.
Awesomenauts
It's a 3v3 2D platformer lane-pusher with an art style reminiscent of a saturday-morning cartoon. The upgrade system is very simple compared to other lane-pushers, and the games tend to go a lot quicker (15-25 minutes.) It's very intuitive to get into, but still has room for a lot of expression of skill.
Unfortunately Ronimo (the company who made it) went bankrupt in late August, so the matchmaking server went down in September; but recently Atari bought the rights to the IP, so it's possible it will come back soon.
Purge (https://youtube.com/@PurgeGamers) is pretty good. He typically posts full, un-cut dota games, and is lower energy throughout. There's not big volume or tone changes, and they're long enough that you should always be able to fall asleep during them.
I would recommend going and watching the pannenkoek video because it is so good.
The quick version is that it has been known to be possible to clip through the wall to get to the door, but Mario has to be in the walking state to open it. Since the floor directly under the door hitbox is all covered by wall, and the part that isn't covered by wall doesn't have a floor directly below it, it seems like there's no way to actually be in the walking state to open it.
However, by abusing an exploit where Mario finishes his turn around animation the same frame he leaves the ground, the transition to the freefall state is overwritten by the transition to the walking state; this lasts one frame until a check is run next frame — which properly puts him in freefall. Timing the turn around right lets you be past the wall and walking, so you can open the door.