The development was challenging for a few reasons, notably there were no development systems for the SuperFX chip at the time. I wrote a complete set of tools - assembler, linker and debugger - before I could even start on the game itself.
The development hardware was a hacked-up Star Fox cartridge (because it included the SuperFX chip) and a modified pair of game controllers that were plugged into both SNES ports and connected to the Amiga's parllel port. A serial protocol was used to communicate between the two for downloading code, setting breakpoints, inspecting memory, etc