i also have a code for celebi triggering zorua event, it will replace any pokemon in box 2 slot 1 and it will be at lvl 100, but if you would like to use it online, before using the AR code go to the exiting street from hiun city (the one that leads you to the desert) and there will be 2 accessible buildings go into the one of the left and take the elevator to the next floor, in the right bottom corner, next to the trash can, talk to the guy with glasses and he will ask you for a frase (this is to activate the transfer machine)enter the correct frase (http://serebii.net/blackwhite/transfermachine.shtml), save and exit the game, now you may activate the code and search for celebi in box2 and put at the front of your party, don't forget to leave a slot in your party for zorua, and head to the street next to the pokemon center theer will be a building with a big screen at the front gate, enter it and in the lobby will be 2 persons , talk to the guy at the right and the event will trigger. it works perfectly to me so there shouldn't be a problem.
white
94000130 FFFB0000
0221CE2C 5535D67A
0221CE30 16CE0000
0221CE34 B177C8EB
0221CE38 7975B505
0221CE3C B255F9C0
0221CE40 426DD62F
0221CE44 37DFAB49
0221CE48 4D1A59F7
0221CE4C AF29F952
0221CE50 9E99AAA6
0221CE54 C1A2F93E
0221CE58 8F53459E
0221CE5C 995E722D
0221CE60 EC33556A
0221CE64 1AF1CEDF
0221CE68 24051593
0221CE6C 7D4027B1
0221CE70 19C1A90E
0221CE74 67AF05AB
0221CE78 76563DD3
0221CE7C 5EBC6018
0221CE80 EBA7837E
0221CE84 A8D342AA
0221CE88 F22AF112
0221CE8C 7FF4966E
0221CE90 1850A020
0221CE94 28B4510E
0221CE98 B9BCF45D
0221CE9C 06F12850
0221CEA0 7AD819AA
0221CEA4 37957D19
0221CEA8 8B5361DA
0221CEAC A9B6DA2C
0221CEB0 B7DF074B
D2000000 00000000
black
94000130 FFFB0000
0221CE0C 5535D67A
0221CE10 16CE0000
0221CE14 B177C8EB
0221CE18 7975B505
0221CE1C B255F9C0
0221CE20 426DD62F
0221CE24 37DFAB49
0221CE28 4D1A59F7
0221CE2C AF29F952
0221CE30 9E99AAA6
0221CE34 C1A2F93E
0221CE38 8F53459E
0221CE3C 995E722D
0221CE40 EC33556A
0221CE44 1AF1CEDF
0221CE48 24051593
0221CE4C 7D4027B1
0221CE50 19C1A90E
0221CE54 67AF05AB
0221CE58 76563DD3
0221CE5C 5EBC6018
0221CE60 EBA7837E
0221CE64 A8D342AA
0221CE68 F22AF112
0221CE6C 7FF4966E
0221CE70 1850A020
0221CE74 28B4510E
0221CE78 B9BCF45D
0221CE7C 06F12850
0221CE80 7AD819AA
0221CE84 37957D19
0221CE88 8B5361DA
0221CE8C A9B6DA2C
0221CE90 B7DF074B
D2000000 00000000