HMV is selling "Capcom Puzzle World" for the Sony PSP for £7.99 (inc Del.)
You can get cashback through the usual sites (e.g. 5% Quidco, making it just £7.59)
The next best price seems to be £12.93 from TheHUT.
Puzzles to strain your brain...
Heighten your hand-eye coordination, give your synapses a stretching and strain your brain with five of the most fiendish puzzle games ever invented. Bust blocks, crack gems and blow bubbles in these arcade classics reformatted and expanded, exclusively for PSP.
- Five brain-busting puzzle classics: Super Puzzle Fighter 2 Turbo/Block Block/Buster Bros./Super Buster Bros./Buster Buddies.
- Smarter than your friends? Battle friends in wireless two-player sessions. Win and send your high score to their PSP systems.
- Puzzle yourself - Personalise games by adding your own background pictures and take screenshots of your finest moments.