Only the infinite stamina code.
I did attempt to port some of the codes to EUR from USA and stored the values in a text document of my phone, then my phone died and I lost them all. No motivation to redo it now.
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For starters, these codes (minus the staminia code) only work on version 1.0 of USA region Yokai Watch 2. If you have updated your ROM/CIA via the eSHop, or are using the EUR/AUS version, these codes will not work.
Secondly, these cheats are very picky with which version of NTR-CFW is being used. You need to download bootNTRselector.cia and try the different versions of NTR (3.2, 3.3, 3.4 etc.) until the cheats start working.
I hope that helps