Panzer Dragoon Saga

- Don't blow up the giant aircraft carrier thing if/when you revisit that area, you can ruin a sidequest.

- I tended to favor offensive Dragon forms. The rest of the battle system is pretty straightforward. Keeping track of your Dragon's position is the real key to a lot of battles, IIRC.

- If you're going for a 100% complete thing, there are a few secrets that are worth looking up. There are items hidden around the world called D-Units; if you collect all of them, your dragon can transform into its final form, which is kinda cool I guess. They're not too hard to find (you'll end up collecting a few of them accidentally just on your way through the game) and there aren't too many of them. Look up GameFAQs for the exact locations, but if you want a more general tip-- remember where impassable barriers are and come back when your dragon's leveled up.

- There are also lots of hidden books, lore and general world-story stuff in the game, mostly in the town of Zoah. This stuff is almost prototype Shenmue-y-- talking to people at the right time, looking in peoples' bedrooms, that sort of thing. If you're a fan of the Panzer world in general you might find it worth your time to explore this stuff, but (like Shenmue) you can miss it if you're not careful. If you're not too bothered about it, you can always read all the stuff on fan sites instead, where they've documented everything.