Early Bulborbs
Two Bulborb subspecies are known to have been cut from the final versions of the Pikmin games. Both colors match those of the three main Pikmin types. Along with the Red Bulborb, each basic Pikmin type would have a fitting Bulborb had these not been removed.
Blue Bulborb
thumb|250px|right|A Challenge Mode video with the Blue Bulborb clearly shown. In a beta video of Pikmin 2, a small blue creature is visible. It is clearly a Bulborb with white spots; it apparently acts like the Dwarf Red Bulborb, with the same health, attacks and weight. Its treasure value, however, appears to be 5 Pokos, whereas Dwarf Bulbears are worth 2 in the game's released version. An adult version was never shown. Something curious is that in this version of the game, Purple Pikmin didn't stun enemies.
Yellow Bulborb
Yellow Bulborbs appeared in the same video as the blue one, but in an above-ground area that bears a striking resemblence to the Forest of Hope. A dwarf version was also seen, which seems to walk slower than other dwarf bulborbs. These could have been later redesigned to Orange Bulborbs.