Full list of all 12 Nippon Marathon achievements worth 1,000 gamerscore. It takes around 8-10 hours to unlock all of the achievements on Xbox One.
Complete Story Mode with Snuguru Maestro
Complete Story Mode with J DARWIN
Complete Story Mode with Nishibori
Complete Story Mode with Zenbei
Alert 100 Shiba Inu
Choose Snuguru Maestro 25 times in Versus Mode
Be declared the smelliest - Get away from me!
Eat a Wedy Page and gain nothing but protein
Traverse 200 meters in LOBSTER mode
Get 3 strikes in a row in Go-Go Trolley Bowling
Finish a Full Marathon
Collect all Wedy Pages and become a Legendary Backpacker