There's a reason this is considered one of the best games in recent memory. A great sequel that expands on the first while also retaining its own identity. Great writing, great level design. I love the dynamic of Wheatley and GLaDOS with the silent protagonist, learning more about the weird lore through Cave Johnson's recorded lines (by JK Simmons!) and learning about how all of that became heavily embedded in gaming culture was really fun for me. The essential puzzle game with a great sense of humor.