Ophyss

Ophyss is a 1 - 2 player arcade game for the TI-99/4A.

The ophyss is a snake-like creature found in the Antarctic islands of the Pacific. It is unusual, in that it can grow itself indefinitely, as long as its head is not destroyed. The Serpentarium has acquired a number of ophyss eggs, and it is the player's job to keep them alive after they have hatched.

The ophyss moves in the cardinal directions, and tries to eat frogs that hop across the screen from left to right. The player has a hunger meter, and must eat frogs or die of starvation. Every frog eaten causes the ophyss to elongate. After eating 15 frogs, the ophyss dies, and a new one is born. The ophyss can also bite off the tail of their opponent, and if they eat them up to their head they can kill the opponent ophyss. There are 7 levels of computer difficulty.