Hi Scraggle, tested your game, following my opinions: (chatting as Sitting Bull, don't worry, it's normal..)
1 - The game is VERY nice, everything is quality filled as a good granma biscuit
2 - Your code is an example of what we can do with DBPro, and in this way it should be shown in the home-page (not only horrible stuff, not Crysis or GearsOfWar)
about a tech feedback, I tested it over two PC, an old one (single core, 1Gb ram, GeForce 6800) and a newer (dualcore 6400, 4Gb ram, 8800 GTs512 XFX).
On both systems it runs well, somethimes it got some "steps" in the movement, like e little "lag". Nothing of really bad, but in this kind of game can be a lit boring..
The graphic is SO nice, I saw only one difect:
some explosions have this line (rotated textured plans?) that I don't like.
Continue like that man, really good job!
Lucka - gawteam coder - www.gawgames.com