I like how smooth were the controls and the idea of the rewind being that you have to take back your age is cool, but there were some things I didn't liked, the map generation usually gets you stucked, like, you can access 2 or 3 rooms but no more, so the player age for ages (xD). Sometimes the enemies appear in your facem it happens to me when I started the game and I didn't know what to do, also would be a good idea to add some text on the first rooms that says "Move with WASD and Left click to shoot", and sometimes, when I went to the rooms on the left the camera didn't followed me e.e
But the idea has a good potencial, for example, you can have diferent powers or ranges if you are younger or older c: