There are several types of NPromo items available in the game, including:
Here’s why MHGU is the perfect “promising lab” for any hunter: monsterhuntergenerationsultimatenspromslab
Some users append “pro ms lab” meaning “Professional Monster Save Lab” – this is a grey area. MHGU on Switch on Yuzu/Ryujinx (PC), but downloading ROMs is illegal. Instead, play legitimately – the Switch version regularly goes on sale for $15. There are several types of NPromo items available