Quoted from lpeters82:It seems that both groups are happy with their games, which is great. It was damn near a tossup for me. I went with Ultraman, but I'm excited to see if I can switch my game over with an SD card swap. It would be really cool to be able to play both games.
I'm afraid that we have recently implemented measures to prevent switching the software between games. Sorry about that :/
The decision was ultimately made for licensing reasons.