Multiplayer only.
Last year's Rayman Raving Rabbids had the ball rolling with its wacky minigames and highly entertaining design (homicidal/suicidal rabbits from space? I'm sold.) While there are plenty of "minigame heavy" Wii games are that, Raving Rabbids 1 actually did things right with its crazy, yet innovative control schemes and great multiplayer. However, the only problem with the first game was it was bit on the short side with multiplayer games. UbiSoft addressed this in their latest edition of Raving Rabbids, but Raving Rabbids 2 feels like a rushed job in order to meet the ever critical holiday season.
It's rather unfortunate that Raving Rabbids 2 seemed very promising while in development, but the final product is a little bit on the short side. I was able to finish all of the single-player mode under an hour and unlocked just about everything (additional costumes, levels, etc.) While there's a hearty selection of over 50 games to play, you can't help but shake that feeling this game could've had more to offer.
On the other hand, the multiplayer really does shine this time around in Raving Rabbids 2. Nearly all of the games are multiplayer-ready and offers a ton of fun. Raving Rabbids 2 is truly recommended if you intend to play it a lot with your buddies.
One word of warning though: some of the levels can either be a bit too easy or too hard to figure. There were a couple of stages where I'm violently waggling my controller around to make my guy move, but he just stood their idly. In fact, the instructions sometimes can be a little obscure while you're trying to figure out what exactly you're suppose to do. For example (follow me on this one), one level has you escaping from a ravenous monkey while strapped into a bucket and jumping towards the finish line (why a finish line? Who knows.) It felt like the controls were unresponsive to some of my movements as this can also be a problem for other games like the rhythm-based levels. It takes a little patience and perseverance to manage through these stages.
Overall, despite a few flaws here and there, Raving Rabbids 2 really excels in providing a great multiplayer for everyone. However, if you plan on mostly playing solo in Raving Rabbids 2, I really wouldn't recommend this game for you. You'll breeze through the game within no time and that's about it. Otherwise, this one belongs in your party collection.