If you go onto the game page, you will get some control info, but I will put it here aswell

WASD to move, and you have to click on furniture to blow it up. If you are too close to the furniture, you will take damage. Only some parts of the house (and later prison) are explodeable, and after you have blown everything that there is to blow up (18 items in each level), without dying, you will make it to the next level.

You just walk around and blow everything up lol