Pikmin 3 is absolutely superb, and one of the first games you should check out on your brand new Wii U. You did get one at Christmas... right? Oh. Either way, you can grab one of its best games at Argos and Amazon, saving a packet in the process. Thanks to goonertillidie @ HUKD!
Be aware that Amazon are only offering 1-4 week delivery, though, since their stocks are running low, while Argos are only offering store collection.