Trainer sacrifice. Snubbulls and Skitties living together. Mass hysteria!

Visitors to participating GameStops in North America can engage in some early Trick or Treating. From now until 26th October, free codes are being distributed for owners of Pokémon X & Y to possess a Shiny Gengar holding some Gengarite.

The Shiny Gengar on its own knows Sludge Wave, a move it can't pick up through regular play. Once it mega-evolves, however, it turns a dazzling white and gains the ability Shadow Tag, which creepypastes opponents in place and prevents them from switching out or fleeing.

You can see the Mega Shiny Gengar in action below. Hex Girls (and Guys) in the UK should expect codes to hit GAME stores beginning 15th October.

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