way too easy
once you figure out how to use the hint system (get to the first "Lower" then move to the next number), it merely becomes an exercise in how quickly you can click the buttons, and increasing the length of the number to be guessed doesn't change the difficulty at all.
the story is extremely vague and feels in no way connected to the puzzles. Putting in a variety of puzzles would be greatly appreciated.
I would expand on this idea if I were you it seems the concept is good but you tried to make a story too early on. It wouldn't hurt to add a variety of puzzles too instead of just code cracking because once you've figured it out the first time its just easy.
No content of any kind.
3 stars for effort. There is no tutorial, its pretty boring, makes no sense, and has no point.
its really short and not hard at all, but its all right