Pinkie Pie has been drawn in to the Virtual Reality sensation that is the NeuronGear. However, worried that she'll lose her friends if she spends too much time playing it, she heads outside to socialise, only to find Rainbow Dash playing with an NGear of her own.

In a move to combine friendship and video games, she hooks up her own console, and jumps into the same game as Rainbow.

Unfortunately, the game doesn't offer a multiplayer option. What it does offer, is a world full of trouble.

A crossover with Corruption of Champions, a game by Fenoxo.
I'm not allowed to link to it due to site rules, but here's a website where you can find links to it.

You don't really need prior knowledge of the game though.

Come, let me initiate you...