Awesome / Aliens vs. Predator (2010)

• The 'origin story' of Six, the Alien you play. Part of an experiment to acquire more Chestbursters, WY sets up special containers for some chestbursters to be safety contained. However, the WY mooks sent into the lab realize that Specimen Six isn't in its container. The mooks get closer to examine the corpse host, when Six jumps out of the host's mouth. This act impresses Weyland so much that he prevents the head scientist from flash-freezing the lab, saying "I like this one!". It gets even better if the player notices that you see Six burrow back in before the mooks do.
• Six breaking out her kin is just as awesome. After being used as a lab rat by the humans, the EMP burst allows you to have Six break out her kin. This then follows up as you singlehandedly rescue the Queen, before opening the doors to let the your kin escape, all the while delivering a terrifying retribution on your captors.
• The Rookie from the 2010 game manages to wake up from being passed out, then proceeds to fight his way through the Alien hive, killing the Queen and causing the facility to catch fire. And that's only the second level of his story.
• It's hard not to feel like a Big Damn Hero during the final level, when you're charging through the Pyramid to stop Weyland, smartgun ripping apart anything that moves, with the most epic, heroic music in the game playing the whole time.
• The player Predator in the 2010 game, "Dark", eventually stumbles upon artifacts of the very first Alien hunt that the Predator's engaged in; retrieving a ceremonial mask belonging to an ancient Predator of great renown, fights his way through a Weyland-Yutani facility in order to retrieve that Predator's wrist bracer, and uses it to destroy the Predator temple that Weyland Yutani's base had been built on; narrowly escaping after killing a Predalien.
• The battle between Six and the Predators in the finale of the Alien campaign in the 2010 game. Getting impaled or shot will nearly kill you and they won't hesitate to work together. The battle against the elite Predator is just as good as it is one against one and in the end, you beat him by playing dead before facehugging him. Add to the impressive music and you have one heck of a campaign finale.
• Managing in the Alien campaign to clear a room of Marines without getting spotted. It is difficult, and can take multiple tries, but pulling it off is a massive achievement.
• Managing to find a way to harvest a civilian when the situation looks impossible. The final civilian in the Jungle level is a good example. If Six just walks through the door, the civilian will arm a grenade. However, if Six is able to find the right part of the celling, she can pounce on the civilian and harvest them.
• Getting a stealth kill on a Marine with a motion tracker. Keep in mind, you will probably have to be extremely quick in order to get the right prompt, since the tracker will pick up the movement. Its even more impressive in the Alien campaign, because unlike Dark, who could just misdirect the Marines into his preferred area, you have to watch the Marine's pattern, move extremely slowly, and hit E, but it feels extremely cathartic, especially since motion trackers are designed to prevent being attacked from behind.
• Regardless of the rather repetitive dialogue the Marines and androids make, the game actually manages to make you feel like the species you are playing as. When you are playing as Specimen Six, the game actually makes you feel as though you are the perfect organism. When playing as Dark, the game succeeds in making you feel as the ultimate hunter. When playing as Rookie, the game ensures you feel as the outnumbered Colonial Marine, with danger lurking everywhere.
• It is entirely possible for the player to manage to kill a facehugger without a flamethrower or a scoped sniper rifle if they are careful enough. If they manage to see the facehugger's tail waving through the air, they can easily just put two or three bullets into the thing with their pistol and take it out that way. This allows a very serious adversary, one that can cause a lot of paranoia to be neutralized incredibly easily.
• The ending to the Alien Campaign. After the Queen’s death and Specimen Six’s recapture, it’s quickly revealed that she didn’t remain their prisoner for long; She once again was able to escape, build a hive (even capturing and webbing up her tormentor) and the cutscene shows her in the process of molting, becoming a Queen herself. The cutscene then ends with her standing proudly and letting out a roar of triumph.