nice graphic and all.but here's my idea
the light in the boy hand need to be a bigger effect like a dark screen that only can be seen when the boy approaches.
the plot need to be more deep and understandable to fit this game concept and help players to get the idea and messaage
the money earned on a failed level need to be kept not wasted.so that people felt awarded on a failed attempt.
need some effects upon hitting zombies and stuff such as blood etc..To make the game look more realistic
great so far..my only comment is one family member can only one and a half room per day.i suggest you to increase this because the rooms are always dirty
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they clean faster as they level up plus you'll eventually be able to have up to 4 cleaners