This is the cheapest I have seen this game. It looks like a decent game with good reviews, and at under a tenner, it seems like a great Christmas present!
Possibly cheaper with Quidco - I think it's 2.5% cashback which makes it £9.66 in total.
Become the Ultimate Weapon:
The virus. The source of your pain... your enemy... Your Power.
Unleash the deadly power of the glaive and become the hero.