Strange, Bomberman DS HAS TO save in DS Card?

Seems like most of the game I tried with SuperCard 1.52 firmware worked as expected, except Bomberman DS. It seems like no matter how I set in the SuperCard conversion application, it still saves to the memory card! In fact, unless I use a DS card with EEPROM 4Kb (like the Yoshi Touch game that I have), the save game won't work properly! I tried bootup with "Nintendog" and "Feel the Magic". Both failed. Strange isn't it?