This Devil May Cry rip-off gets tiresome soon, although it's fun at the start. The extras are better than the game.
That isn't to say it was like that at the start. At the start, it was actually kind of fun. It was the closest anyone could get to Devil May Cry on the PSP, and anyway, there were some mechanics that looked cool: finishing off opponents with grapples, for one; the Retribution combo, for another. But when they turned out to be all I had to do, and the levels turned out to be extremely short, it was tiring. It felt like a chore to play.
Then some refreshment came along in the form of Johnny Blaze's trusty Hell Cycle. The driving sequences were fun in the beginning; you didn't have to kill every single demon like in the on-foot sequences, making it less tiresome. They were few and far between, making them look like a treat compared to the frustrating on-foot combat sequences. However, the controls were laughably pathetic; after a while, my right hand was aching from moving over the buttons to avoid obstacles. The Vengeance Duel boss level was, literally, hell; being forced to strain my hand to attack the other dude was no laughing matter. The combat, fun at the start, gets tiresome as the novelty wears off; by the fourth chapter, you were grinding to kill enemies. For a laugh, the developers made it that unless you had connected up to a maximum combo, you couldn't inflict damage on the foes, so for the first ten minutes (if you bother playing it for that long) you'll be attacking them for no reason just to chain up your combo.
At least the extras are cool: interviews, the first few issues of the Ghost Rider comic books, etc. but to get these you need 'skulls', and to get 'skulls', you need to play the game on Punishing (i.e impossible) difficulty.
All in all, Ghost Rider is worthwhile only for people craving something remotely like Devil May Cry for the PSP, or for the insanely devout Ghost Rider fan. It falls under the same category of 'disappointment' as just so many other movie- and comic-based PSP games. The extras make up more of the game than the gameplay; rent it if you must have the extras. For the gameplay, just don't, unless you're desperate for Devilish May Cry gameplay (however stupidly distant) on the PSP.