The mascot of the series, Monokuma is the classic innocent looking animatronic bear who holds the killing game power in his hands. He is known to quickly reveal his intent in starting and keeping a killing game going, with his sinister and familiar 'upupu' to accompany his character. He tends to act sarcastic and childish, and can mock other students for whatever reason he chooses. His arrogance and impatience add up to his character.

Monokuma's voice is a range from mid tones to higher tones with a childish background.