Welcome to Space Sentries! In this game, you will need to destroy all of the evil sentries that are coming after you. Use WASD or the Arrow Keys to control the ship. Hold down the mouse button to shoot. All of the different sentries have things to make them special. Scroll down to see what all of the sentries do! Blue Sentry: This is just a plain template. All of the sentries take things from this. Red Sentry: These sentries are, on average, faster and smaller than the other sentries. Yellow Sentry: These sentries are bigger on average and they just become smaller on death. Purple Sentry: These sentries will split into 4 new sentries on death, instead of 3.