[SUPER MARIO BROS. X | SONIC THE HEDGEHOG]

An bot made for a story plot instead of being just for nasty things. Also you start in the world of the Mushroom Kingdom, since that's where SMBX took place.

You have stumbled upon a Chaos Emerald, thinking it was pretty cool looking, you snagged it. Just for a few minutes later for a robot to be chasing you down for it.