Nice puzzles! At first, I thought tile based movement and not being able to turn around without moving was a weird decision, but then I realized this restriction made for much more interesting puzzles, as you needed room in order to do stuff and had to plan your every movement more carefully. I think the biggest gripe I had was that the screen was too small, increasing the viewport there would be cool, or just giving us a fullscreen option would be even better. Maybe on the downloaded versions we can maximize the window and this problem is gone? Other than that, getting used to the rhythm of the game and calculating how long it takes for projectile felt weird on a puzzle focused game but it could be much worse, I guess it's just a matter of getting used to. All of these are very easy to fix with some polish though, you have a good foundation for a game there. Good job!