Redditor Vernm51’s parents couldn’t find a copy of Pokemon HeartGold for the DS locally for Christmas. So they ordered it online from GameStop which they received a bootleg copy that didn’t work and found out after the game was given as a gift.
The cheap Flash card-based bootlegs that plagued the original DS don’t work anymore due to 3DS firmware upgrades—they register as THQ’s Alex Rider Stormbreaker game and then fail to load.
more here
Always check your games folks.