I brought a super multitap and games to a friend's birthday last night and we spent hours playing Super Bomberman 2, Super Bomberman 5, and Bomberman 64 (2001). It was the first time I'd played the latter two extensively and I've got to say SB5 is the best of the bunch: insane action, tons of powerups, a fifth player, and postmortem bombing from the sidelines really keeps the party going. Bomberman 64 2001 paled in comparison, though having Panic Bomberman on the same cart is a nice bonus.
I've never played Super Bomberman 3 or 4, are they worth checking out if I already own 2 & 5? Posts about other games also welcome.