User blog comment:Kogath/Monster Hunter XX Discussion/@comment-6050823-20170110175940

I keep forgetting to mention this about Lao-Shun Lung. It isn't really about MHXX, but it was something mentioned way in the beginning for the original MH.

Back in the development times for MH1, the development team wanted to add a lot of variety when climbing onto Lao-Shan Lung's back, such as gathering, mining, etc. Due to time constraints, they weren't able to add much to Lao-Shan Lung in the first game and hunters could only carve its back. However, they mentioned something quite interesting: "Maybe we could that around MH5." (Japanese MH5 ぐらいなら出来るのかも)

Source: http://www.capcom.co.jp/monsterhunter/1/?var1=2 (第八回)