Devices like Brick Game (E-Star E-23) include games using the block grid as a crude, low resolution dot matrix screen T. Such devices often have many variations of Tetris and sometimes even other kinds of games like racing or even space shooters, such as Space Invaders, where one box projects boxes at the enemy boxes. The most advanced of these designs can easily have more than 20 distinct games implemented and feature multi-channel sound, voice synthesis or digital sounds samples, and internal CMOS memory which can save the current game progress and high scores when the system is turned off. Many of these handhelds with a dozen such games are marketed as having hundreds or even thousands of games, though the vast majority are just different speed and difficulty settings. The most basic can now be sold for less than the cost of a glossy magazine, however the world record score on one of these machines is held by Trinidadian Samir Boodan with a score of 9,999,999 the highest score possible on one of these devices.