In the Good Looks department, there are great lighting effects on "DJ's" weapons and pick-ups. The weapon lighting is mostly a style thing, but for the pick-ups or objects that offer some interaction to be shown more prominently on screen is functional. For instance, when DJ swings from a hook, the next hook he can use starts to sparkle, letting you better direct the action. Environments are compact and look great, so they are easy to navigate and full of fun stuff.
How much do I love a soundtrack that isn't just bleeps and blops, mindless techno/dance or licensed junk they're trying to push on us? Death Jr. has some great music crafted for each stage in the game, as well as sound effects that don't get annoying after the umpteenth time. The C4 Hamster weapon really should get annoying, but their little 'squeak' combined with them rushing out to blow up on some enemy never failed to amuse.