Jameeras are a type of stationary and hostile aliens which consist of a large, cycloptic head affixed to the ground that functions as a manner of mounted turret inside the aliens' nest. They spew two fast-traveling projectiles in quick succession and may start their attack from a great distance, often catching players by surprise. They can become very dangerous, as in addition of having to contend with them from the front, the player may also have to deal with fast oncoming Orians from the rearguard.
Only two are encountered in the game, in Alien Base 3, both found at the vertical climbing section found midway through the level.
In Contra: Return, the player usually has to deal with other enemies such as Orians, Ledders, Grenade Throwers and Greeders while dealing with a Jameera. In this game, these enemies spew three-way indestructible Gels which travel straightforward. If the player approaches the creature, it will attempt to bite them. If the player makes their way to the other side, they will turn back and continue shooting. Jameeras in this game look more reptilian rather than xenomorph-like.
- This enemy does not appear in the arcade version of Super Contra.