I am using Linux but thanks to Wine I could launch your game, so maybe that's why it caused these things: The first 3 times I played, it worked fine, but when I relaunched the game again, the GUI wasn't appearing anymore in game, no map, no water, nothing :/ Keep in mind it's maybe because I am on Linux using the Windows build of your game! A very minor thing: You didn't add collisions to the house! :P
Other than that, based on the 3 quick games I've played before it didn't work anymore, the gameplay was interesting, because there was kind of a little background story even if it's kind of an arcade game, which is something I liked. The how to play part is clear and simple. The sound control in the option is also a good + !The art style was cool!
In conclusion, that's a nice game you've got there! :)