TI Modules

Parsec is a horizontally scrolling shooter written by Jim Dramis and Paul Urbanus for the TI-99/4A and published by Texas Instruments in 1982. The player in Parsec pilots a spaceship through sixteen differently colored levels which scroll horizontally across the screen. The objective is to destroy all enemy ships while avoiding being shot, colliding with any flying object or the ground, or overheating one's laser cannon.

Three waves of fighters alternate with three waves of cruisers; fighters pose only the threat of collision, while the cruisers fire on the player's ship. Enemy ships enter the screen one at a time. A new fighter can appear with others still on the screen, whereas a new cruiser will not come until the previous one is destroyed. A ship flying off the left edge of the screen wraps around to the right side and attacks again. The fighter types are named Swoopers, LTFs (Light Triangular Fighters), and Saucers. The cruisers are called Urbites, Dramites, and Bynites. Each level ends with an asteroid belt, in which an array of asteroids advance on the ship and must be avoided or shot. At the end of each asteroid belt, any remaining asteroids are cleared away and the color of the ground is changed; then a new wave of Swoopers begins. 

Alpiner is an action video game designed by Janet Srimushnam for the TI-99/4A home computer and published on cartridge by Texas Instruments in 1982. The player climbs six of the world's highest mountains while avoiding trees, animals, falling rocks, and landslides. The mountains in the game are Mount Hood, the Matterhorn, Mount Kenya, Mount McKinley, Mount Garmo, and Mount Everest.

The player must climb the side of each mountain and make it to the summit in the allotted time.

Obstacles placed in the alpiner's way include falling rocks, wild animals, trees, and brush fires that they must avoid to continue up the mountain. In level 7 the avalanche obstacle is introduced, and in level 13, ice falls. Being hit by obstacles will result in sliding a variable distance down the mountain. If the alpiner slides all the way down the mountain, one of the lives are lost. Players receive an additional life every time they make it to the top of Mount Everest. There are 18 levels in the game divided into 3 rounds. The player must climb each of the six mountains successfully to continue on to the next round.