Battle Nexus - GBA to GC
 

Playing the GBA version of Battle Nexus, I periodically checked the display password menu, and have collected a whole bunch that, when plugged in to the GC version, boost your defense. Why are there so many that do that?

Because some developers like to do tie-ins between GBA and GCN games. Something about making people want to buy both versions.

I understand that. I'm just trying to figure out why there are 80 million passwords that boost your defense.

So you only have to do one challange to earn it and if one is easier then you can still get the password. Kinda stupid -_-

TMNT 2 battle nexus on gamecube supports the Gamecube Gameboyadvance cable? Woohoo!