Good game but but so unreal!
And why the most seen enemy is the kleer an enemy that is not fun to kill...
So generally:The series's gameplay involves large amounts of enemies, large, open areas, and various hidden rooms. The levels in the games are massive, depicting vast plains, deep valleys and the exterior and interior of the monuments of different human civilizations. Monster fighting makes up most of the games, with Sam's only help being NETRICSA (NEuro-TRonically Implanted Combat Situation Analyser), an advanced computer AI surgically inserted in the hero's head. NETRICSA serves as an in-game strategy guide, cataloguing encountered enemies and powerups, and at the same time providing bits about the background story and hints on how to cross the levels.