Want to win a custom Lock’s Quest DS Lite?  Well then head on over to THQ’s web site for Lock’s Quest and play the flash demo version of Lock’s Quest.  After you’ve finished playing, you’ll be greeted with a screen that looks similar to the one below:

The grand prize winner will receive a custom DS Lite that has ARV of $720, along with a copy of the game.  Ten first prize winners will also receive a copy of the game.

Lock’s Quest Web Demo
Lock’s Quest Sweepstakes Official Rules

According to the official rules, the contest will end October 4th.