Here's a couple I thought were interesting in my initial pass:
Switch is very short, but is a really interesting take on the Only One theme as you can only control one thing at a time, either the player, or the singular platform. The positioning is finicky and it could use some polish on the controls but it's definitely worth a few minutes.
Yeah! is a short narrative game where you chat with people, but the only dialog options are variations on the word "Yeah". It's fun to see just how much tone can go into one word with varying caps, punctuation, and spelling.