Magical Drop, because though I own 5 games over 3 consoles for the series, I need 4 more of them to have them all for consoles I own (outside of the Gameboy one, because it seriously lacks Vs CPU mode). Nothing like a fast paced puzzle game that requires quick thinking. You either win quick, lose quick, or in the case of the original game, get into long grueling matches (the Super Famicom one in particular is hard), or in the case of Magical Drop 2 SFC, the sub boss, Father Strength, destroys you within seconds. And of course, who could forget the bouncy World character. Video from the PS1 port bundled with Magical Drop 3, called Magical Drop 3 Plus Wonderful.VIDEO VIDEO