Mars Matrix: Hyper Solid Shooting, or simply , is a vertically scrolling shooter arcade game developed by Takumi and released in 2000. The game was published by Capcom and run on their CPS-2 arcade system board. Mars Matrix was later ported to the Dreamcast video game console in 2001. The arcade version uses a horizontally aligned monitor, despite being a vertically scrolling game. Plot In 2100, millions of people were starving due to massive food shortages and has caused civil wars around the world. Centuries later, however, the world government had sent colonists to Mars which began to solve these problems. At a nearby farm, the Infinity chip was discovered and it revealed all the technology of the advanced civilization. In 2309, a Declaration of Independence has been sent to Earth. Large armies have been amassed on Mars, and a gigantic armada was waiting for any attack from Earth. The Earth government sends out a fleet of battleships followed by a special air raid unit called ACID; ACID is equipped with a new fighter ship known as the Mosquito. Their mission is to enter Mars, stop the rebel violence, locate and destroy the rebel leader, whoever... or whatever it may be... Gameplay Controls The game only uses one button, as the triggered actions differ according to the timing with which the button is pressed: Normal Shot: Tap A button. Shot power increases with level (max 8), which depends on EXP points. Piercing Cannon: By not pressing A button for at least 1 second, press A. The attack has a close range that can hit multiple targets. The attack strength is higher than Normal Shot, and the attack strength increases against target closer to player's fighter. Piercing Cannon's shot power does not change based on level. Mosquito: When GHB is full, A button is hold for 1/4 to 1/2 second. A barrier is activated afterwards, which damages contacting enemy. With active barrier, player's fighter is invulnerable, the GHB gauge is drained, and enemy bullets are attracted to player's fighter. Releasing A button while GHB is not empty causes attracted bullet to fire in a direction away from player's fighter when A button is released. A repelled bullet that hits an enemy is converted to cube. Gravity Hole Bomb: When GHB is full, A button is hold until GHB gauge is emptied. When activated, an explosion damages all on-screen enemies and destroys