Wii Play... more like Wii Gay (hhahah im so funny). Read on.
Well you'd be better off saving your extra £5 and just buying a remote by itself, cuz, wow, most of these games suck. There's a shooting game which gets boring fast, then you have to find your mii in a crowd, which sucks, there's a REALLY bad game where you have to 'pose your mii' into bubbles, then there's a terrible table tennis game, theres a pretty good laser hockey game, theres an OK billiards game, then theres a 'who the hell designed this piece of' fishing game, then theres a pretty funny but badly controlled CHARGE game where you murder scarecrows on the back of a knitted cow, then theres a game where you control a little tank and blow up other tanks.
None of these games are all that good, and most of them are really, REALLY bad. So save your money and get a remote separately. Then you can get a decent VC game or something with the money you saved. Or 500 1p sweets. Take your pick.