Summary: CORE is an FPS for the Nintendo DS. The Nintendo DS is not the best system for first person shooters. It simply lacks the horsepower to pull off a modern FPS. Keeping the NDS's limitations in minds CORE is not a bad game.
Summary: A word of caution to everyone here. Even though it says that Hubbagames has this in stock, I just got an email from them yesterday (7/29/2009), after inquiring when it was going to ship, that the item is in pre-order.