https://edensoft.itch.io/portal2d
Here it is. You can meet GLaDOS in her pixelated beautifulnes, and official voice lines from Portal wiki(Big thanks). To bring into game right feel of Portal, I need good sounds, so Valve give me official sounds...just kidding on YouTube channel GameSoundEffect(Also big thanks) are all Portal sounds and many more.
I try to make logical puzzles with lasers, buttons and cubes.Portal 2+D is platformer game, so i make few leveles based on precided jumping.
Your Portal Gun is big part of this game.