Splat is a small but addictive game to play when bored.
You play as the shield in the middle, it is controlled by moving your finger.
Slowly emerging from the sides are cannons that fire blobs. These blobs will move around the stage a bit while flying towards you. Different colours do different things.
The longer you survive for, the higher your score will be.
Settings menu includes a filter to limit the cannons to specific colours and a slider to adjust the speed.