Honestly I'm still baffled and I'm clueless how to start this review. I'm still clueless how they set the bar for their prequel this high and even provided with a better sequel. I can't wait to jump into the co-op function honestly since the singleplayer was this good.

Valve literally took a look at Portal and said what could we improve towards the sequel. They added new general features like a loading screen, which I didn't find mandatory, and you can see where your portals are placed through walls. They stuck with similar ideas to complete their puzzles and added loads of new ways to solve puzzles and move along the map. Speaking of puzzles, they added so many, that it seems that the game is twice as long as the prequel. They added lasers and with them you have cubes which you can use to direct the lasers in any way you want. You have bouncing pads and on walls you see indicators which show where you land. You have bridges to guide you around the map. You also have floating pads which can work in two directions but only when triggered by a button. Finally you have three kinds of gel red blue and white. Red gel gives you a speed boost. Blue gel gives you a jumping boost and white gel allows you to portal on it, mainly for places that you couldn't portal on before.

Obviously the things previously said aren't the ones that baffled me but it is mainly the environment. The story is amazingly well built and it teaches us more about apeture sciences. It also contains a few plot twists here and there. The places you visit are fairly new but you'll visit some well remembered places from portal. Something they also introduced is companions, the most part of the game you'll have a object travelling with you. One of them is a funny little core with a british accent. Aside from entertaining you the bots can help you sometimes to get to certain paths. The jokes are as good as last game so expect a good laugh.

I highly recommend that you buy this game, and play it for the rest of the day or week. Turn off your notification, because the game doesn't support tabbing, and enjoy this gem for many and many times you want and are supposed to complete the story. (Edit:) You also can choose from many maps from the community to test out so you won't get tired of the story and you can still play.