This was a very great game. That's kind of weird, people are praising AAA games like Call of Duty and Far Cry 4, and I'm sitting here praising a game made in 2 days. But, it deserves it. For a game made in 48 hours, this is honestly a very great game. It is a cool concept and I hope you make another game like this. If you do, I have a few suggestions. Note: These are my opinions, and in no way do I with to offend you or your game.
1.) The text is a little, for lack of a better word, jumpy. I like the font, but if the text could be still that would be better, in my opinion. It's kind of a small thing, but I don't know.
2.) I know there are only 3 puzzles (4 if you count the Start Button thing), but maybe if you started off easy. I might just be stupid, but it took me a few moments to solve the first one (Again, not the Start one). Maybe if it was a gradual progression of complexity.
3.) Finally, of all the things I think would possibly make this game any better, along with the much suggested, "Make it longer", is make it have an end goal. If there is something that you are trying to get/get back, maybe it might add meaning to the game other than solve puzzles.
Thank you for making this very cool game, and I really hope you make another.