What's the most fun game that takes the least amount of space?

Not as small as some of these, but Cool Edit 96

I like this entry in this 13K js game competition
https://js13kgames.com/games/choch/index.html

https://thumbs.gfycat.com/WanWeeklyBee-small.gif

I wonder what's the smallest game in the current era that was pressed onto physical media.

apparently sekiro was notably small in filesize, but no idea what would actually be the smallest

there's often limited edition physical media runs of small indie games so Kero Blaster at 20mb is very likely the winner on PS4
https://limitedrungames.com/products/limited-run-130-kero-blaster-ps4