Things can get out of hand pretty quickly when someone has hacked their Pokémon. But if it's not against an actual person, a hacked Pokémon battle can be pretty hilarious.
One of the first battles you experience in Omega Ruby and Alpha Sapphire is against a little kid that challenges you precisely because you look like a beginner. What the kid in this video doesn't know, however, is that Sleepy Jirachi has hacked one of the most powerful Pokémon available. So not only is this mega evolved Rayquaza at level 100, it also knows moves from Pokémon that haven't even been released yet. Needless to say, the Rayquaza ends up destroying the little kid.
The win screen is pretty priceless:
This reminds me a lot of this other brutal match that's been floating around recently...
— Gilgamesh (@byakvran) December 5, 2014
Beginner's Luck [Sleepy Jirachi]