Source google image: https://d2skuhm0vrry40.cloudfront.net/2017/articles/2017-08-10-09-45/Hotlands_08.png/EG11/resize/690x-1/quality/75/format/jpg
Mettaton puzzle solution
Source google image: https://d2skuhm0vrry40.cloudfront.net/2017/articles/2017-08-10-09-45/Hotlands_08.png/EG11/resize/690x-1/quality/75/format/jpg