Conduit 2, broke down many of the new features included in the Wii-exclusive shooter. Some of the additions rectify surprising omissions from the first game: the ability to sprint, alternate fire for weapons, and a proper sniper rifle. Embarassingly, the first game missed any female NPC skins for multiplayer -- an issue that has been rectified in Conduit 2.
Some of the added features are far more significant: the addition of split-screen multiplayer (with a brand new Horde-inspired co-op mode!), for example. The experience is fleshed out with an in-game store system that allows you to purchase new weapons and don new perks with a persistent character across both single and multiplayer. Finally, the campaign adds a feature most FPS games are missing today: boss battles.
Does all this newness amount to a better game? That's up to debate, of course. But no one can argue that Conduit 2 -- when broken down into numbers -- is a far more significant game than its predecessor.