Just some chill game about feeding pixel bunnies and taking photos of them and that can be finished in one sitting.
And being a bit of a glitch hunter myself, I was impressed in finding out the game can be forced into a laggy state by one, despite its small scope. Iirc, it requires spamming too much the carrots across the map. The bug also helps in getting the expected bunnies quota for photos much quicker.
It's made on PICO-8, so the image in the "cartridge" part of the game's page can be loaded into the PICO-8 engine, and probably in emulators you can find in the wild.
One game that, for me, was pretty fun to play, is ConflictCraft (Steam link), a RTS about taking the enemies' bases in each mission.
The game is simple enough to not be a "game over simulator" (looking at you, Defense Zone 2), but complex enough that it isn't some idle clicker or those shallow puzzle games that would be found a lot in mobile devices circa 2014 (is this still a thing?).
Also the game has some room from cheesing, which is a plus for me! =D
