Hi, thanks so much for the commment. The upper bar is health. the red houses are zombie houses they need to be blown up to get points. white houses needs to stay they give points depending how many are left. when you place a bomb it has a short timer and you need to walk away to avoid being hit also watch out for junk from the exploded houses and zombies you lose health. When you reach the end of this small level you will be shown all the points you get.
I will try adding so its better understandable. like text "100 points" ,hp and show the timer.