I find it’s more about patience than anything else. It’s very much an observe the pattern and adjust accordingly kind of gameplay. Also resource (stamina/health) management. I actually couldn’t finish any of them until I had gotten dragged into fighting games by friends that play competitively. Seeing that people could actually adjust their actions on the fly at such ridiculous speeds made me realize I was just button mashing all along. It’s also what made some of the more technical metroidvania games make sense to me.
My achievement showcase was just me going insane while having nothing better to do when I was off work with an injury though…