The puzzles felt clever without frustrating the player. I often felt surprised how the game kept introducing new ideas all the way through. I also kept having 'one more time' moments and couldn't put the game down. On top of the gameplay being good, the graphics are also charming, there is a simple story that is entertaining to follow, the dialogue is witty and there is even voice acting. I honestly don't know how the developer put so many things in the game while asking around €3. I paid €1 when there was a sale, but I would have definitely paid its normal asking price have I known how good it is. I can only conclude that this game is a labour of love and the price reflects that.

In terms of flaws, I can think of the following:
1. The UI is on the screen. It would have been better to hide it. The dev did mention a patch would cover this.
2. Only one puzzle felt cheap. Even this, the dev mentioned he's looking into making it better. There's also an in-game hint if you don't mind using it.

If you like puzzle games with retro graphics, then definitely give this one a try. This one is a hidden gem!