Bottom option, under "Collection" menu is "Unlock Codes". First you have to enter an 8-digit verification code, then you can enter up to 8 10-digit unlock codes.

Effect	Password
10 Vexos Passes	YQLHBBSMDC.
10,000 Core Energy	QY8CLD5NJE.
Earthen Armor Ability Card	JJUZDEACXX.
Fire Spirit Ability Card	YJ7RGG7WGZ.
Tornado Vortex Ability Card	2FKRRMNCDQ.
Verification Code	HXV6Y7BF.
Water Pillar Ability Card	HUUH8ST7AR.
Zorch Thunder Ability Card	82D77YK6P8.