Alien Trilogy is a classic first-person shooter for the PS1 that challenges players to survive against the terrifying Xenomorphs from the Alien franchise. While the game offers a satisfying and challenging experience on its own, there are also several secrets, unlockables, and codes that offer additional challenges and rewards for players who are willing to explore the game’s environments and complete certain tasks.

Here are some of the most notable secrets, unlockables, and codes for Alien Trilogy:

  1. Cheat Codes: There are several cheat codes that can be entered at the game’s main menu to unlock various features. Here are some of the most useful codes:
  • Infinite Ammo: L2, R2, L1, R1, Circle, Triangle, Square, X
  • Invincibility: L2, R2, L1, R1, Circle, Triangle, X, Square
  • Level Select: L2, R2, L1, R1, Circle, Square, X, Triangle
  1. Secret Levels: There are several secret levels hidden throughout the game that can be accessed by finding hidden switches or completing certain tasks. Here are some of the most notable secret levels:
  • Level 6: To access this level, you need to find a hidden switch in Level 4. The switch is located behind a false wall in a room with a dead Marine.
  • Level 11: To access this level, you need to find a hidden switch in Level 10. The switch is located in a hidden room behind a wall that can be destroyed with explosives.
  • Level 15: To access this level, you need to find a hidden switch in Level 14. The switch is located in a room with a broken floor. You can reach it by jumping from a nearby ledge.
  1. Bonus Content: Depending on the version of the game, there may be additional bonus content, such as behind-the-scenes videos or concept art, that can be unlocked by completing certain tasks or finding hidden items. Here are some examples:
  • Concept Art: To unlock concept art, you need to collect all of the Data Discs scattered throughout the game’s levels. The discs are hidden in secret areas and can be difficult to find.
  • Behind-the-Scenes Video: To unlock the behind-the-scenes video, you need to complete the game on the hardest difficulty setting.
  1. Alternate Endings: There are multiple endings to the game, depending on the player’s performance and choices throughout the game. Players who are able to complete the game under certain conditions may unlock special endings that offer additional story content. Here are some of the most notable alternate endings:
  • Bad Ending: If you fail to save enough Marines throughout the game, you will get a bad ending where the Xenomorphs overrun the colony and kill everyone.
  • Good Ending: If you are able to save enough Marines and complete all of the game’s objectives, you will get a good ending where you escape the colony and destroy it with a self-destruct sequence.
  • Secret Ending: If you are able to complete the game on the hardest difficulty setting without using any cheat codes, you will unlock a secret ending that reveals a hidden plot twist.

Overall, Alien Trilogy offers a good degree of replayability thanks to its various secrets, unlockables, and codes. Whether you want to unlock cheat codes, find secret levels, or discover alternate endings, there is plenty to keep you engaged and challenged in this classic first-person shooter.

Unlocking the Secrets: Codes, Secrets, and Unlockables in Clock Tower II: The Struggle Within

Introduction Clock Tower II: The Struggle Within, the chilling survival horror game developed for the PlayStation 1, offers players more than meets the eye. Beyond its gripping gameplay and haunting narrative, Clock Tower II holds a trove of hidden treasures. In this...

C: The Contra Adventure – A Look at Its Codes, Secrets, and Unlockables

C: The Contra Adventure - A Look at Its Codes, Secrets, and Unlockables C: The Contra Adventure is a 1998 run-and-gun game developed by Appaloosa Interactive and published by Konami for the PlayStation console. While the game failed to deliver on its promises of...

Unlock the Secrets of ATV Quad Power Racing for PS1: Tips, Tricks, and Cheats

ATV Quad Power Racing for the PlayStation is a thrilling racing game that allows players to ride all-terrain vehicles (ATVs) across diverse environments. In addition to its challenging gameplay and immersive sound design, the game also features several secrets, codes,...

Castlevania: Symphony of the Night – A Treasure Trove of Secrets and Unlockables

Castlevania: Symphony of the Night is widely regarded as one of the greatest video games of all time, and for good reason. The game's immersive gameplay, engaging story, and stunning visuals have captivated players for over two decades. But did you know that the game...

Unraveling the Secrets: Discovering the Hidden Gems of Crash Team Racing

Introduction: Crash Team Racing (CTR) for the PlayStation 1 captured the hearts of racing enthusiasts with its fast-paced gameplay and lovable characters. Beyond its thrilling races and vibrant tracks, CTR also hides a treasure trove of secrets, codes, and unlockables...

Army Men Air Attack PS1: Unlockables, Secrets, and Cheat Codes for the Ultimate Gaming Experience

Army Men Air Attack on PS1 is a unique third-person shooter game that takes place in a world of plastic toy soldiers. With a variety of missions, weapons, and power-ups, this game offers a fun and challenging gaming experience. However, did you know that there are...

Broken Helix Cheats, Secrets, and Unlockables: Exploring the Game’s Hidden Treasures

Broken Helix, the first-person shooter game developed and published by Konami for the PlayStation console in 1997, may have been out for over two decades, but it still has some secrets up its sleeve. In this article, we'll take a closer look at the cheats, secrets,...

Unlock the Secrets of Adidas Power Soccer for PS1: Cheat Codes, Hidden Teams, and Easter Eggs

Adidas Power Soccer for the PS1 is a classic arcade-style soccer game that provides players with hours of fun and excitement. While the game's simple mechanics and intuitive controls make it easy to pick up and play, there are also several hidden features that can...

Unlockables and Secrets in The Bombing Islands for PS1

The Bombing Islands is a classic action game developed by Hudson Soft for the PlayStation console. It features a unique blend of puzzle-solving, exploration, and combat gameplay, all set in a colorful and vibrant world. However, what makes this game truly special is...

Uncover the Secrets and Unlockables of Actua Golf 2: How to Access Hidden Courses and Unique Items

Actua Golf 2 is a classic golf simulation game that has stood the test of time with its realistic gameplay, impressive graphics, and extensive replayability. One of the most appealing aspects of the game is its many secrets and unlockables, which offer players an...
Share This