High Impact Games and SCEA scored a blockbuster with the release of Ratchet & Clank: Size Matters for the Sony PlayStation Portable in February of last year. If you missed it back then, now is your chance to score a blockbuster of your own by taking advantage of Amazon's sweet offer. You can now have the game for only US$ 19.99 - that's right, 50% off for you guys!

Ratchet & Clank: Size Matters is a high-octane, science fiction platformer/shooter which reunites us with the unlikely tandem of a humanoid Lombax and a tiny robot. This time around, Ratchet and Clank's vacation gets sidetracked by a kidnapped girl - with 21 new weapons, gadgets, and thingamajigs to boot.

Custom firmware issues have been noted for Ratchet and Clank: Size Matters before but that has already been remedied. Amazon's pot of gold just might not last that long, so better outrace the competition now.