Jet Set Willy II: The Final Frontier is ostensibly the sequel to the ZX Spectrum platformer Jet Set Willy. In reality, it is an expanded version of Jet Set Willy that was backported from the Amstrad CPC port, which itself was expanded from the original. As before, Willy has woken up in his gigantic mansion, hungover and with no memory of the night before. He must now tidy up the mansion so the can have permission from his housekeeper Maria to go to bed.

Once again, DigitalDuck cleans house in this run and goes to bed in record time, only collecting the minimum number of items necessary and dying multiple times in the process.