Haha, yep...Jon St. John is the reason I bought the game too. Be prepared for a challenge though, even on Medium difficulty. Might take you a few levels to get into it, but keep at it...if only to see if Duke gets the chick in the end, ha. :)

About Aztaka...played it for about 6 hours now. The hand-drawn graphics and the soundtrack are worth the pricetag alone. I've never played Metroid so I can't compare it to that, but the creators were heavily inspired by the Metroid games. Lots of backtracking and it's a bit of challenge at first, so grinding until you level up a few times is a must.

If you have $15 to spare....go for it. Highly recommended.