In Scott Pilgrim vs. The World for PS3 and Xbox 360, there is a hidden store you can access that has some really good (and expensive) items for sale.
In the first level shortly after the shopping district, look for a star on the wall by the road. Walk up to the star and a door will open to the secret shop.
Ambrosia – $59.95 – 200 HP, 200 GP, 1200 XP
Bionic Arm – $129.95 – 50 Str
Never-Ending Fantasy – $119.95 – 30 GP, 30 Def, 30 WP
Speedy the Porcupine – $109.95 – 50 Spd
Tlaloc’s Feast – $49.95 – 1 Up
Batman: Arkham Origins - Easter Eggs and Exploits Guide
Destiny – Gold Chests Guide
GTA Online – The Best Cars in Each Class for Racing
Assassins Creed III Maps - Feathers, Viewpoints, Fast Travel, Almanac Pages, Trinkets, Treasure Locations, and more
Gran Turismo 6 - Trophies List