Development System used was an Apple IIgs
Game was developed in part or whole on an Apple IIgs computer.
The first video game about Development System used was an Apple IIgs was released in 1994.
As the IIgs and the Super NES used the exact same custom Motorola 68k CPU (65C816), the IIGS was an ideal PC for compiling SNES code. As for the rest of the development process, probably not optimal.