Excellent work! I really enjoyed playing this game. It might be a personal thing, but I get satisfaction from seeing things get cleaned. The artwork was really good too. The building's pixel art is clean (pun intended) and I like the cityscape you made for the background. The game plays well and was fun. Adding a timer gives the game the necessary challenge that turns it from a cozy game to a more demanding game. My only recommendation would be to add gamepad support. But that's a selfish request. Keep up the good work!