Don't Solve This Brain Puzzle

Is this a game? Technically yes. It's a puzzle. A hard logic puzzle with tricky brain teasers. Enough levels to keep you busy. Why "technically"? Because when you open it, you won't realize it started. The screen will be mostly empty. There's no Start button. The first puzzle is already happening, and you haven't noticed. Tutorial? No. Hints? Yes. They're also strange. What am I supposed to do? Tap. Swipe. Shake. Rotate. Sometimes close the app and think. These are logic puzzles, brain teasers, tricky riddles, and mystery puzzles at the same time, just without instructions. Are there secrets? Yes. Hidden codes, secret tricks, and small details that only matter once you notice them. Is this an escape room? Sort of. An escape puzzle with no room and no exit. How long does it take? Some people finish in an evening. Some get stuck on puzzle 4 for six months. Both are fine. Is it a hard brain test? Yes. These are impossible puzzles, but not in a hard math way. The logic is just different here. Different how? If we told you, it wouldn't be a puzzle anymore. What's at the end? Something. Not a score. Not a leaderboard. Not a "Congratulations". A dog? Possibly. . . . . . . . The code you need: 9767