Color Space Invaders — This is Taito's first commercial clone of Space Invaders for Tandy Color and subsequently for Dragon. Its behavior is almost the same as in the original: rows of aliens slowly zigzag across the screen towards the player, who can only move left and right. The player has three barriers to hide behind, but they are gradually worn down by alien shots. An additional small barrier can be moved to cover the player. From time to time, a UFO worth extra points will cross the top of the screen. Fifteen difficulty levels are available.