I picked up Lollipop Chainsaw and that game is a lot of fun. I love Suda51's games, I really think they're kind of pop art in a way. I love all the references and ideas. This one is a lot like Shadows of the Damned but trading guns for melee (it's a lot like Splatterhouse as well). That is a linear 3D brawler.
It is short though, only a few hours long, though I've really enjoyed replaying the stages for unlockables and bonuses (for once, I regret not getting the pre-order costumes). For most people that probably means rent first or wait for a price drop.
Where else can you fight a funky zombie Bootsy Collins villain who speaks in autotune and flies in a disco UFO atop an arcade? Some cool voice talent too: Tara Strong, Michael Rosenbaum, Linda Cardellini, Michael Rooker, Gregg Henry, Shawnee Smith, etc.