Spend 2 1/2 $10-dollar bills on Touch Detective, Sega Superstars Tennis

You'll have to forgive our convoluted title -- really, it couldn't be helped. If it's not immediately clear, and we very much doubt that it is, GameStop has two great DS online and in-store deals this week:
Which both add up to $25 (provided that you round up)! See what we did there? Two-and-a-half $10 bills? $25? Come on!

This article was originally published on Joystiq.