Use the mouse pointer and dodge the blocks, the longer you can dodge them the higher score you will get. Comment your score in the comment section below if you want to. My best is 128.
The background is from google pictures: https://www.google.com/search?q=cool+background+for+game&source=lnms&tbm=isch&sa=X&ved=0ahUKEwji0b3fkfDTAhUIwWMKHePRAqMQ_AUICigB&biw=1680&bih=920#imgrc=wwP5IRgnLyUMIM: All scripting and drawing done by me.
