There's not much else I can add onto this game's reputation that you don't already know, but Portal 2 is a 10/10 in every sense. It's a great challenge, really fun innovative puzzles which holds up strongly in this era of games. It's also a tremendous 100% achievement game to try and knock out, bringing some strong co-op features to the table, building off immensely from the first iteration of the game.

You'll find it on sale a lot, this game has gotten countless praise for decades so go ahead and give it a good go!

I loved the part where he kills you

Potato