Kaite Tsukutte Asoberu: Dezaemon (1994)

A construction kit for the Super Famicom, built in 1994 for designing and playing arcade-style vertical-scrolling shoot-'em-ups. Along with numerous enhancements compared to its Famicom predecessor, it also includes a fully-featured sample game (which itself is a spiritual sequel to the developer's 1993 arcade game Daioh).