Hanjuku Hero: Aa, Sekaiyo Hanjukunare...! (半熟英雄 ああ、世界よ半熟なれ…!! "Let the world become soft-boiled!"?) is the second game in the series. The Egg Monsters featured in the game are parodies of Final Fantasy IV characters.
The game was re-released on the WonderSwan Color in 2002. This version features a graphical overhaul and twelve new summons.
A soundtrack album for the game, titled Divertimento Hanjuku Hero, was released by NTT Publishing on January 21, 1993. It features four orchestral renderings of songs from the soundtrack, and 42 tracks from the original soundtrack. It has a duration of 51:53.
Source: Wikipedia, "Hanjuku Hero", available under the CC-BY-SA License.