I have played both Portals and I've never played something so hard. This game feels like it isn't finished. The way the character moves and interacts with everything kills me more than actual things supposed to kill me. The portals are very glitchy as well. Level 31 with the turrets and the pit? Pit killed me much more than the turrets. I died less in the whole story of Portal 2 than on level 31. Also, the turrets seem a bit big. And please make the turrets not solid objects once you kill them. Pushed me one too many times. Fix portal placement issues. Fix overall physics engine. And finally, fix your game. I love the concept but it needs work. 3/5 for effort. Favorited just because I love Portal.
This is what games should be. Not something that is incredibly hard or so easy that it's boring. This is fun. I love the feeling I get when I get that headshot. This game is perfect. It has cheats too so I guess that gives the game replay value.