You Don't Know why this happened

Last night I ordered a used 3DS and Pokemon Y gamechip off of Ebay.  It arrived quickly.   There was a note on it. “Please be careful.”  Random times the game freezes” The 3DS was a an aqua blue, When I turned it on there was nothing but the Pokemon Y game showing.  Which was odd but I ignored it. As the starting screen started up Yveltal was black and light red.  I pressed the START button. But there was already a profile.  The player was in Victory Road. The Pokemon team was a level 27 Meowstic and a level 40 Umbreon.  The Meowstic was a male. It had blue eyes. The eyes should be a aqua green. But they were light blue.

It must be a mistake or something.  The Umbreon was a dark gray with blood red eyes. Dark yellow circle things on its body.  Both sprites looked like they were wearing necklaces. Meowstic looked as if it had a blue scarf.  The Umbreon looked like it had a chained silver spiked collar.  

I walked I did the spiral animation for when you used the escape rope.

It made my player outside the Prism Tower.  I looked at the gym badge case. There was none. But how could I be on Victory Road?  I checked my bag. I had honey and a Pokeradar. Thats it. No map no Adventure Guide book. Maybe this game is hacked..?  As I walked I entered a Pokecenter.  The screen was black.  Then it turned on.  I was in a white room with a white man.  “We’ll always be sad…”  The screen flickered and turned staticy for a moment .  Then a battle started.  Trainer ZYD wants to battle you! Go Difference! Difference was Sylveon.  How did I get it? I had no idea at all.  The trainer ZYD sent out Pikachu.  The pikachu was all black, Difference use Shadow ball! The Pikachu fainted. Difference was level 76 and femaleESJIdfPSFP’JI