sentences:  The original version of the game on the Atari 8-bit computers presented itself as a side-scroller, with the player's character running continuously from left to right as the background and path continuously scrolled.Control was limited to jumping at three different heights; holding the joystick down and pressing the button resulted in a low jump, holding the joystick up and pressing the button resulted in a high jump, and pressing the button by itself resulted in a medium jump.The running speed of the character was constant; only the height of the jumps differed, although speed of the character gradually increased of its own accord with each passing level.