Try this it works
this code is for squirtle :
00000554 000A
1003dae6 0007
83007CEE
0007
but if you want a wartortle just change the 4 last numbers to 0008, if you want blastoise change the 4 last # to 0009.. Put thumbs up if it works!

00000554 000A
1003dae6 0007
83007CEE
00FA
it works , REALLY!

I think the code for rare candy is 88CFA129 357400B2 51CF1F27 2E270374 but I don't know how to use it...