Alien Shooter

Story related, cannot be missed.

For this trophy, you're required to kill at least one monster of every type. Monsters are the horde of aliens that you kill in Alien Shooter. There is really no need to be concerned about this trophy. It'll unlock automatically just by completing the 1st Campaign Episode - "The Beginning". It can also unlock in a Survival Mode only if you managed to survive for around a good 18 to 20 minutes. .

These monsters come in four types of different colors (in order from weakest to strongest):

1. Green (weak attacks, slow speed, low health)
2. Yellow (moderate attacks, normal speed, normal health)
3. Red (strong attacks, fast speed, moderate health)
4. Blue (extremely stronger attacks, fast speed, extremely high health)

Types of Aliens:

1. Mutant Frogs: These are your standard monsters that you'll see first in the Campaign and Survival. They are the weakest type of monsters due to their weak attacks and low health.
2. Multi-Armed Bipeds: These type of aliens appear in the 3rd level of the Campaign and is the 2nd type of aliens to appear in Survival. They are the 2nd weakest type of aliens in the game due to their slow speed and moderate low health. In later levels of the game and further into Survival Mode, these monsters will be armed with weapons and armor. The green and yellow versions will shoot bullets while the red and blue versions shoot rockets. In order to kill them, you must 1st destroy their weapons and armor. In Survival Mode, the blue version of this monster will drop the Flame Thrower.
3. Giant Spiders: These type of aliens will first make their appearance in the 5th level of the Campaign and is the third type of monsters to appear in Survival. The weaker version, green, is a melee type of alien. The stronger versions of this type of alien will all spit/shoot green acid at you. Stepping on these pools of acid will harm you. Although, they aren't exactly strong in attack power they are the fastest types of aliens in the game with low moderate health.
4. Rhinos: These are the final type of aliens whom make their appearance during the 7th level of the Campaign and is the fourth type of monsters to appear in Survival. All Rhinos usually wear armor, although some of the weaker versions are unarmed. Green versions will shoot bullets, yellow versions will shoot bullets and lasers, the red and blue versions will shoot lasers and missiles. Out of these types of weapons, only the laser is the deadliest because they can shoot through walls and are very difficult to dodge unlike bullets or missiles. Despite their weapons, these are still the slowest types of aliens in the game, however, they have the highest health. In Survival Mode, the blue version of this monster will drop the Magma Minigun.