I don't know if the name of this channel was just changed recently, but the moment I saw the name of it I immediately thought "oh Wade made a new channel"
There’s something weirdly charming about these games in an incredibly borked sort of way. They remind me of the sorts of games I made in programming class in high school
"Lemons and Tomatoes" is the game "Othello" (or Reversi, if you prefer). The basic idea is that you always have to capture an opponent's piece when you play, which you do by placing you piece so it flanks one or more of theirs between your pieces. It's a lot of fun and worth playing!
With the different styles and varying quality of the games, I'm willing to bet that this is some sort of compilation of games from all the students in a coding class that the teacher put together.
Mariachi Band: "Por favor, señor, we have been playing this song for ten hours. Our fingers hurt. I haven't seen my family in days. Stop playing these awful games. Señor. Te lo ruego, por favor."