
Rock Band: Unplugged on the PSP is a very intriguing title, and it shows off both the strengths and weaknesses of having a game as well known and respected as Rock Band go portable. Unlike Guitar Hero: On Tour, there are no plastic instruments or peripherals for Unplugged; you simply use the d-pad and the face buttons of the PlayStation Portable to play the notes, and you use the trigger buttons to switch between instruments on the fly. If you take Rock Band 2, add in a dash of Amplitude, and filter it through the PSP, this is what you get. Is it good? Yes. Does it drop the ball in one huge, key area? Hell yes it does.
The game ships with 41 songs on the UMD, with a few tracks that are exclusive to the game, including "ABC" by the Jackson Five. We think the track list is strong, but you can check out all the songs available to find out for yourself. You'll also be able to grab new songs for the game via the game's online store, a first for the PSP. Of course, you'll recognize both the songs in the game and those in the store from past Rock Band games and DLC, and there is no way to use the songs you've purchased on other versions of the game on Unplugged.
From a practical point of view, that's to be expected; licensing songs across not only games, but whole platforms has to be a nightmare. That said, it still grates to pay for the same content twice. That being said, the track list the game ships with is more than adequate, and sounds fine through headphones.
Here's how it works: there are four lanes for the notes, down from the console's five, and the controls are mapped to the left and up buttons on the d-pad, as well as the triangle and circle buttons on the system's face. You can also configure these however you'd like. You hit the notes as they come down, starting on one instrument, and if you nail an entire section, that instrument will play by itself for a time, allowing you to focus on another instrument. If you don't miss notes and jump between instruments with skill, you'll be rewarded by high multipliers and you'll hear the full song.
Of course, if you drop notes, you'll lose the drums, vocals, guitars, or bass. That makes getting back up to speed tricky, especially if you're stuck only hearing the vocals and whatever instrument you're playing at that moment. If you neglect an instrument for too long, it will fail out, and you have to bring it back with star power. This makes for a somewhat frantic experience, as you're responsible for the entire band's performance. It's also somewhat odd to see the vocals given a note chart instead of reacting to your actual voice. Again, there's really no other way to do a portable Rock Band. It certainly takes time to get used to, but the note changes do make sense. It's hard to imagine how tough coding the vocals had to have been, though.
The career mode is what you remember from Rock Band 2, so don't expect any surprises there. You'll still have to go from city to city, setting up set lists, asking your manager for advice, and sometimes playing the same songs over and over to get enough stars. You can customize your band, the name, and the logo, as well as all the expected things. Since you're in control of everyone this go-around it's kind of fun to create more of a band experience than having all of your friends create a character. It's fun to have complete ownership of the band and everyone in it.

There are also some very nice touches for the more casual fan. You can unlock every song the first time you turn the game on, although turning on that option disables saving. Still, if you just want to explore the track list, this is a great feature. Under extras there is also a Warmup Mode that allows you to focus on one instrument at a time, with the computer playing the other instruments. It's a very good time to focus just on drums and play the title like a straight-up rhythm game where you don't have to worry about switching between the lanes. Focusing just on drums or guitars is a great way to play. Band Survival Mode turns all the instruments on, and you have to jump back and forth between them as quickly as possible to see how long you can survive. Fun, but very stressful.
The one mode that's missing—and holy hell how did everyone miss this—is multiplayer. The PSP is a wireless system. You can jump onto a WiFi hotspot and buy tracks. So why can't I grab a few friends and give everyone a virtual instrument with their PSP and play like a band? It would be great, whether ad hoc or in infrastructure mode, to only have to focus on one bit and allow other people to play the other instruments. It would have felt like a really cool way to play Rock Band as it was always meant. Here's hoping this is coming to the sequel, because it's a huge oversight here, and a completely missed opportunity.
It's amazing just how much Rock Band Unplugged feels like a portable version of Rock Band 2. It looks the same, the menus are set up the same way... it looks and feels just like you want it to. The background animations may be canned this time around, but who has time to look at them when you're keeping an eye on four instruments at once? This is a great way to pass the time, with a great selection of music. The only thing keeping it from perfection is the lack of multiplayer.