Asda are selling "Peter Jackson's King Kong" for the Sony PSP for £6.99 (inc Del)
You can get cashback on top of this (e.g. 2.5% Quidco, making it just £9.79)
Next best price seems to be £9.99 from PowerPlayDirect.
Play As Man. Play As Kong.
Embark on an epic adventure created in collaboration with Academy Award-winning director Peter Jackson and based on the Universal Picture's film. Survive as Jack in a world crawling with predators and live the legend as Kong.
Use weapons and traps wisely to survive in first-person as Jack.
Break jaws, slam enemies and throw massive objects in Kong's third-person battles.