Atlus is bringing at least four games to E3 next week. Knights in the Nightmare, the PSP version, is one of them. Sting’s PSP port has a brand new opening movie and analog stick controls. You can see some DS/PSP comparison screenshots here.
Etrian Odyssey III, Trine 2, and Rock of Ages from Zeno Clash developer Ace Team are also be at the show.
Atlus says these are a “few of the titles we’re planning for the next few months” and these are some of the games that will be at E3. We’re meeting with Atlus during the show, so we’ll let you know if there’s anything else and ask them about Growlanser… again, if you really want us to.