They used a cheat plug in. It requires a CFW and a New 3DSi wish it could lol . i played with a lot hackers in the last few days toying around online. some guy had 99,999 attack and defense with basic armor and weapon and killing everything with kicks. there was also a bow gunner person i met who used basic gear and was one shotting everything with cluster shots. im just curious of how they did it. i just played dumb and didnt ask cuz everytime i pointed it out they removed me from their game.