Spoiler: Metal Gear Solid 4, 'insert disc 2' [Update]

This isn't going to spoil the story for you, but it may spoil a funny joke hidden within Metal Gear Solid 4. We don't want to say anything more, or it might just ruin the surprise. This one is definitely not for Xbox 360 fanboys.

Update: New video embedded.

[Thanks, BulletToothTony!]