Heatblast is really cool. He can generate and control intense heat, which makes him great for combat and for melting things. He has a flaming body which gives him a very intimidating look.
Fourarms is really cool. He's big and strong with four arms, which gives him great power in combat. Heatblast is also amazing as he can generate and control fire.
Alien Predator, Alien vs. Predator, how many are there? As of September 2015:
The Alien series had a total of five games, namely Alien, Alien 2, Alien 3, Alien 4: Contract, and Alien 5: Rebirth.
The Predator series consisted of four parts: Predator, Predator 2: Alien Awakening, Predator 3: Ancient Light, and Predator 4: Dark Warrior.
Alien vs. Predator was a movie released in 2002. It was a cross-plot between the Alien series and the Predator series.
The Alien in the game has a complex story. It involves their life cycle, from face - hugging to chest - bursting. They are highly aggressive and hunt in packs in the game's setting. Their goal seems to be spreading and eliminating any threats.
Gwen would be a great character to pair with Alien X. Her magical abilities could complement Alien X's powers in interesting ways. For instance, when facing a threat that requires both brute omnipotent force and the finesse of magic. Another good pairing could be Kevin. His ability to absorb and use different forms of energy could interact with Alien X's power source in unexpected ways, like when they need to combine their powers to break through a powerful energy barrier.
For me, the most memorable parts of the Alien story in the game are related to their hunting behavior. They are very sneaky. They can suddenly appear from the shadows or from above. Also, the whole process of their life cycle shown in the game is quite unforgettable. From the eggs lying around waiting for a victim, to the face - huggers attaching to hosts and then the full - grown Aliens emerging. It all adds to the horror and mystery of the Alien's story.
There are some really cool 'Ben 10 Alien Force Fanfiction' out there. 'The Mutant Invasion' is a story where mutants from another dimension invade Earth and Ben has to use his alien forms in unique combinations to fight them. 'Gwen's New Powers' is another interesting one. It shows Gwen developing some unexpected powers and how she and Ben deal with that. Also, 'Kevin's Redemption' is a story that focuses on Kevin trying to make up for his past mistakes.
I'm not entirely sure as it could be a very specific or fan - made story. But generally in the Ben 10 Ultimate Alien series, Ben Tennyson has a new Omnitrix which gives him access to ultimate forms of his aliens. The big story might involve him facing new villains, protecting the Earth and the galaxy, and dealing with the consequences of using his powers.