Robots (Survival Defense)

Robots are enemies in Survival Defense.

Appearence
They have a cylindrical body with a robotic arm (maybe two) they have large legs and a head with a red light (for an eye)

Game information
They will appear from the dropship to attack the tower. They spawn progressively faster until a limit is reached and must be destroyed to prevent the game from ending. Every destroyed robot awards a killpoint but if one touches the tower, the building will be destroyed and the Game Over sign is shown.