I always thought they shouted "Gutzinga!" as some kind of play on words with guts and Mazinger (they ARE forming a giant robot), but Zephe disagrees with me
Oh yeah, I forgot about that. It's been like a year since we had this conversation.
In any case, it's definately Japanese.... does anybody know the name of that robot anyway? It could be whatever the boss' name is. I'd give you the sound clip I recorded, but it's on my screwed up hard drive and I'm still waiting for the guy to recover my stuff off of it. The Duke might still have it, I don't know.