Enemy types:
Agents: armed with a Pistol or rifle With there mission to Stop the player
Helicopters: located in the Celling Floor, the players must react fast to shoot it down
Armed Agent, Final boss: Fast and the player must be fast to react in order to shoot it dead. Wielding a Katana
Agent-13 / Preston: in the ending, the player is given two choices, to spare the Leader (Bad ending, the player will be shot) and Shoot the leader (Good Ending)
The Player has 10 revivals.