battle,beam_rifle,burning,cannon,cloud,damaged,dirty,earth_(planet),energy_gun,explosion,fire,flying,glowing,glowing_eyes,helmet,holding_weapon,horizon,lake,machinery,mecha,military_vehicle,molten_rock,no_humans,ocean,photo_background,pilot,pilot_suit,planet,pool,rain,realistic,reflection,ripples,robot,science_fiction,ship,shore,space,space_craft,spacesuit,sparks,splashing,standing_on_liquid,thrusters,variable_fighter,warship,water,watercraft,waves,weapon,rating:safe