Although the game is still in development, movement and hit detection could definitely be improved-jumping is difficult to control, and enemies sometimes cause damage even though they obviously miss. The most difficult gameplay setting, Trauma, is also not available. One downside of the demo is that it lacks save functionality, although once you pass a level, you can restart at the next. The 3D environments are gorgeous, with details and explosions that contribute to the nightmarish scenario.

Collecting the souls of the slain undead boosts your health, while tarot cards give your character special fighting or protection abilities.

The demo offers three of five possible weapons from the full game, each of which has two types of attack. Three levels from the single-player game offer loads of supernatural first-person-shooter fun.

Although Painkiller definitely has an old-school vibe reminiscent of Wolfenstein or Doom, the detailed graphics and advanced physics engine are anything but. Denied entrance to heaven, you must battle hordes of undead warriors to save the world while discovering the mystery of your own destiny.

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