House of the Dead (Sega Saturn)
The game plays out over several modes: arcade, Saturn, and boss. The arcade mode is a pretty direct port of the quarter-munching coin-op, while the Saturn mode mirrors the arcade, but offers a handful of different characters for you to choose from. These characters vary by the degree of damage their bullets inflict, the time it takes them to reload, the diameter of their bullets, their life, and the number of rounds to their chamber. Finally, the boss mode allows you to immediately take on one or all of the game's four boss monsters, progressively, without having to run around the house killing other stuff in order to "earn" them.