Alien vs Predator/Walkthrough

The game takes place on Vega 4 in the city of New Shanghai. During some underground construction, a work crew came upon a species of aliens, who attacked the workers and then quickly moved to the surface. The people of New Shanghai, unfamiliar with the xenomorphs, were quickly overcome, but not before broadcasting a distress signal to Earth which was also received by a passing ship of Predators. The Predators went to Vega 4 to hunt this species of aliens rather than hunting down humans as prey because it was decided that these aliens were more of a challenge than humans. After completing the stages of Vega 4 the player travels to the Orion Nebula, the region of space where this species of Aliens came from. The final boss, the queen alien, can be found there.

Stages
There are 6 stages which each either 1 or more parts in the stage. 5 of the stages have alien bosses who each possess different powers from the animals they gestated in during their life cycle.

Stage #1 - part#1 = City, part#2 = City Sewers. Boss: Aquatic Alien, having emerged from a dolphin.

Stage #2 - Part#1 = The Woods. Boss: Gorilla Alien, a beast that came from an ape.

Stage #3 - Part#1 = Vega 4 Alien Hive. Boss: A phalanx of Chestburster alien young.

Stage #4 - Part#1 = Space Port. Boss: Bat Alien, a winged alien that emerged from a giant bat.

Stage #5 - Part #1 = Spaceship 1, corridors. Part #2 = Spaceship 2, engine room. Part #3 = Spaceship 3, bridge. Boss: Snake Alien.

Stage #6 - Part #1 = Orion Nebula. Part #2 = Alien Hive (looks similar to stage #3). Boss: The Queen Alien.