Looks like the TV game is not, but it seems to run on the GBA.
avatarbeu Avatar - The Last Airbender - The Burning Earth (USA) 2007 THQ
avataru Avatar - The Last Airbender (USA) 2006 THQ
If you have trouble with the MAME GBA emulation, you can try another emulator.
Although it is cool this works, I was already pretty sure this was the case and was specifically curious about the TV game.
We have one.
It's one of the units where the CPU and ROM glob are very, very close together, and the traces are a fraction of a millimeter thick. Sean has to solder 30+ wires to those traces, and between the limited space, and how tiny the traces are, he's had zero success.
Technically possible, but might require some kind of robotic assistance which nobody has access to.
Good to know I'm not the only person who's looking into this. I plan on returning to University next fall. Do you know if they might have the type of equipment your referring to? I'm still undergrad so I wouldn't know myself but if I needed it for a capstone for example they might let me use something like that.