If you are playing the NSP version, you are likely looking at the Japanese release (as there was no English physical localization, only the 3DS version) or the Japanese eShop version. This review covers the gameplay, the "Switch" upgrade, and the technical state of the updated NSP.
: These updates were critical for stability and cross-play features between the 3DS and Switch versions in Japan. English Patches : Before the Western release of Generations Ultimate monster hunter xx switch nsp upd
On custom firmware, these are often compiled into a “DLC Pack” NSP ranging from 100–300 MB. Installing both the UPD and the full DLC NSP gives you 100% of MHXX content. If you are playing the NSP version, you
After updating to 1.4.0, you still need to obtain: the "Switch" upgrade