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Voca Bot (ボキャボット Bokyabotto) is a type of robot in Heybot!. The vocabulary from a Voca Bot changes depending of the Voca Nejis inserted on its head. A few also contain a "Neji Tama" (ネジ魂, "Screw Soul") in their abdomen that gives them life.
Eto Voca Bots
Eto Voca Bot (エトボキャボット) is a Voca Bot with an Eto Neji, a special Voca Neji. Heybot can combine with Eto Voca Bots. Eto (干支) means the Chinese sexagenary cycle, and the Eto Voca Bots are based on the Chinese zodiac.