This is a cute little game. The aesthetic is very interesting and I think it fits well. I was a little confused at first about what I was supposed to do. I picked up that I was supposed to click the letter that was red quickly but I didn't get a lot of feedback from the game about when it worked so I didn't realize that sometimes I had to click the key more than once and other times I only had to click once. Maybe a little more guidance would be nice.
The games also relatively simple and I think it works. This feels like a segment of a larger game to me and I'd be interested to see what that larger project would be.