Zoop

Zoop is a puzzle game. You control a coloured shape that can move on a 4x4 square in the centre of the screen. On each side are 4 rows of shapes of different colours (red, green, purple and blue), the appearance of new shapes moves the shapes in front of them forward. A flashing marker indicates where the next piece will appear. The objective is to destroy the approaching pieces before they reach the centre square. You can only destroy pieces of the same colour as your shape, if you hit a piece of a different colour it will change colour with your own. You have to change colours in time and destroy the approaching shapes quickly.