Red's Tower Inferno

A shooting and shooting game, a hell in the red tower, you must defend it of the blue balls team, which will attack you on all sides with no respite. You will only have the hel of the read team, Dont kill them. Observe and let them to introduce in the tower and they will give you powers for limited time as slower enemies, more powerful weapons, lightnings... How much you will survive?? All depends on you, keep posted your best score and increase your speakers volume!