Metal Gear Solid 2 and Rising Demos.

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In Zone of the Enders, a PS2 launch title, it contains a demo for Metal Gear Solid 2: Sons of Liberty.

The Zone of the Enders HD collection also contains a demo for Metal Gear Rising.

Both games featured Raiden in the game, and both games are Zone of the Enders.

Pretty interesting right?

[spoiler]I know this is pretty badly explained, but I just didn't know how to make this sound interesting[/spoiler]

Also, I may have posted this before, not sure.