Seven kinds of Bikmin from Bikmin 269; the Icecream Bikmin is the only one not to come from that game.
Bone Bikmin = Fire
Shroom Bikmin = Poison (reskinned as "shroom")
Moai Bikmin = no immunities
Koopa Bikmin = Crushing, Explosions, can somehow swim (replaces both Rock and Winged Pikmin
Minion Bikmin = Electricity
Ice-Cream Bikmin = Ice (not in 269)
Egg Bikmin = Water