Kurt appears to be a digitised actor, who has been fluidly animated with enough frames to make his movement as real looking as possible. All of the enemy aliens and vehicles too are fully 3D, with a standard of detail that leaves Quake wide-mouthed and drooling. You can really believe you're running through a huge alien ship, as you negotiate the different rooms and tunnels, stopping to admire the great scenery. I particularly liked the Humongous Hall of Mirrors, and the Huge Cannon Range. It's quite amusing actually, considering the aliens themselves are generally humanoid build and size, yet their mining cities are like wandering around Giant land.
Sound effects are fun and help add to the atmosphere.
Along with the noises from Kurt's chain gun, and the explosions and lasers, the aliens are a real hoot to listen to. You can often sneak up behind a couple, and hear them blabbing away in thier garbled alien talk. When they're off in the distance, and safely protected behind a wall or barrier, they'll often yell taunts and sing in a mocking tone at you - here, the animation is also hilarious, as they wave, make insulting gestures, and even turn around, bend over and moon at you. Although the traditional type of 'puzzles' in this game are scarce, you're still given the option of thoroughly exploring each arena, and occasionally have a variety of methods of progressing to the next part. For example, one area has the exit high up on a ledge, the only way of reaching it being to jump up on the stepping stone like platforms leading to it.