Press space to switch the colors at the bottom. Make sure the green falling colors land on the green at the bottom and the blue falling colors land on the blue. If you the color lands in the right place you get one point and if if doesn't a point is taken away.
Sometimes different colors appear really close to each other and you lose points. Sorry! Check out some other games that can be played in 60 seconds here: https://scratch.mit.edu/studios/25289348/ Thank you @creative-boy11 and @supercatnat for being the first ones to love!