Shadow of the Colossus for Sony PlayStation 2 (PS2)
End-level bosses are standard fare in video games, but the bosses are the levels in this unusual adventure. Developed by the studio that created the PS2's critically acclaimed Ico, Shadow of the Colossus is another fantasy-themed puzzle adventure that's light on dialog and heavy on beautifully expressive environments. Players take the role of a young knight who sets out to rescue his sleeping-beauty princess from a magic-induced state of suspended animation. To do so, he'll need to defeat the 16 Colossi -- landscape-sized enemies so enormous that they can only be conquered by exploring them, platform-game style, to discover their weaknesses. Against some Colossi, the hero may ride his faithful steed alongside the monster, galloping at full speed just to keep up with its mile-long strides. Other Colossi require the player to actually climb aboard, and crawl, run, and leap across their massive forms to find the hidden vulnerability that can be used to bring them down.