"Bust A Move" (also known as "Bust A Move Bash!") for the Nintendo Wii.
Available from HMV for £17.99 inc Del. (+ Cashback, e.g. 5% Quidco).
Next cheapest seems to be £24.99 from Gameplay
"Bust-A-Move' offers simple puzzle gameplay that's easy to pick up and play but that also has enough strategy and depth to reward master players. Players must use the cannon at the bottom of the playing screen to fire coloured bubbles into similarly coloured bubbles at the top of the field.
These bubbles advance down towards the player at regular intervals and if they reach the bottom it's 'game over'! Merging three or more of the same colour bubble makes them disappear and clever strategies can be put to use to create chain reactions, which clear multiple bubbles at once.
'Bust-A-Move' is crammed with the puzzle series' staple ingredients to please die-hard BAM pros while at the same time offering a whole raft of new additions to thrill BAM newbies. Classic features include the return of a wacky cast of characters headed up by brothers Bub and Bob and original gameplay modes including Puzzle, Endless and Versus modes.
Exciting new features include the option to play in eight-player versus matches – a first for the Bust-A-Move series! Other new features include 'Shooting' mode, where bubbles come at you from all sides of the playing field, and the generous 'Slip' option, which automatically corrects your aim if you're slightly off."