_3D Infinity_ is an on-rails space shooter that features real 3D graphics.
The player controls a ship that can fire a normal shot as well as lock-on
missiles, and must shoot enemies and avoid obstacles while flying along a pre-
programmed path. The ship can move freely around the screen, but will always
move forward, and can also perform a barrel roll in either direction to avoid
obstacles. When the ship is hit, it loses shield energy, and if the energy is
depleted, the ship will explode and the game is over. The game offers three
difficulty levels, and two different 3D graphics methods in addition to the
standard display mode.