Pokémon HeartGold USA (NTR-IPKE-USA) retroarch cheats
These cheats were used in my playthrough with the following self-dumped cartridge ROM:
rom:
code: IPKEv00
size: 134217728 bytes
card: 80007fc2
crc32: c180a0e9
Tested with retroarch 1.7.5 - DeSmuME git 3032b69.