Very nice, too bad there is only one shape. Besides, it would also have been nice to have a button to be able to reload.
Thanks a lot, it was fun to make.
The thing about multiple shapes is that sometimes you might miss a block making you wing the rest of the blocks to match, sometimes makes it harder to get the good enough, and I imagine that more than one shape might make the game even harder, but maybe this is just due to a poor implementation, so I'll keep it in consideration.
Also, the replay button is definitely a must-have in this type of game. I just spent most of my time trying to figure out the matching blocks' system (For getting the similarity between the block and the shape and the background), so I was left with little to no time for solving some sneaky bugs. So basically, I ran out of time.
But thanks for playing it, I'll update it in the future to add the replay button :)