The various titles have been developed by Atlus, Multimedia Intelligence Transfer and Bbmf Corporation, and feature music by Hidehito Aoki and Misaki Okibe.

On the field, the player can access pools that regenerate their energy, and starting in Majin Tensei II, they can use the terrain to gain an advantage in battles, increasing their defense rating.

[10] The first two games were developed by Atlus, while Ronde was handled by Multimedia Intelligence Transfer,[2] and the Blind Thinker titles by Bbmf Corporation.

[15] He made use of ambient music, while also incorporating elements of funk, electronic distortion and sound effects; for the second game, he also introduced a focus on synthesized piano in the compositions.

They were highly critical of Ronde, labeling it a kusoge ("shit game"); they said that it was not "completely terrible", but that it felt like "a poor man's Shining Force III".

[2] Chris Greening at VGMO called Majin Tensei "one of the most individualistic and accomplished ambient scores on the Super Nintendo", enjoying the mix of conventional ambiance and funk, saying that it both enhanced the game's mood and worked as stand-alone music.

[16] On the other hand, he found Majin Tensei II's soundtrack "pleasant but disappointing", saying that several of the compositions were underdeveloped, uninspired or repetitive, while noting more developed tracks such as "A.D. 1995 Story" as highlights.