Mizubaku Daibouken for PCE was released on January 17, 1992 in Japan for 7200 Yen.
March 1992 - Joypad N.6
The original arcade game was released by Taito in 1990. Some features are missing from this PC-Engine port - the parallax scrolling was, obviously, omitted and the boss sprites are indeed smaller. However, new warp-doors were added.