Recommended categories for Shoot Em Up Games
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USER_INTERFACES: User interface and menu naviation
EXPLOSIONS: Explosions
WEAPONS\Firearms\Fire_Real_Time_Strategy_RTS: Firearms mastered for RTS games
WEAPONS\Sci-Fi: Futuristic weapons
ELECTRICITY: Force fields
THRUSTERS_FLAMES: Thruster and fire/flame effects
IMPACTS: Impacts of various sorts
WEAPONS\Rockets: Rockets and missiles
VEHICLES: Land / Air / Space vehicles