Digimon Tamers Battle Spirit Ver. 1.5 Fixed

Released in 2002 for the WonderSwan Color (and later the Game Boy Advance in a modified form), Digimon Tamers: Battle Spirit was a unique fighting game. Instead of a traditional health bar, it utilized a "D-Reaper Orb" system. You didn't just beat your opponent down; you had to knock "Spirit Orbs" out of them and collect them to grow your Digimon into their Mega form.