Just to put the achievement into perspective, this is code written for a console with a 1.79 MHz 6502 running on a 3.58 MHz 65816 (a 6502 with 16-bit capabiliti

Just to put the achievement into perspective, this is code written for a console with a 1.79 MHz 6502 running on a 3.58 MHz 65816 (a 6502 with 16-bit capabilities crudely bolted on) -- that it even runs anywhere close to native speed and with so relatively few bugs is a monumental achievement considering that even though the SNES will run 6502 code, the audio and graphics hardware, etc., are entirely different between the consoles and have to be emulated.