Hajime no Ippo (はじめの一歩)
* Fighting Spirit
* Ippo le Challenger
* Knock Out
* 第一神拳
* 시작의 일보
* Espiritu de Pelea/Lucha
Opening Theme Song OP1
Title: under star
By: Shocking Lemon
*used in episode 1~25*
Tonari no Kaibutsu-kun (となりの怪物くん)
* My Little Monster
* 옆자리 괴물군
* The Monster Next Door
* удовище за соседней партой
* Le garçon d'à côté
* 鄰座的怪同學
Ending Theme Song ED1
Title: White Wishes
By: 9nine
*used in episode 1~13*