If you’re looking for information about GetsuFumaDen: Undying Moon on Switch, I can point you to:

Looking into for the Nintendo Switch Go to product viewer dialog for this item.

Collect "souls" during each run to power up your character in real-time, choosing between upgrades for main weapons, sub-weapons, or health.

is a dark fantasy roguelike action game developed by GuruGuru and published by Konami . Originally a sequel to the 1987 Famicom classic, this modern reimagining blends intense hack-and-slash combat with a striking visual style inspired by traditional Japanese Ukiyo-e art. Gameplay & Features

Players take on the role of Getsu Fuma, the leader of a clan tasked with descending into the underworld to defeat the cataclysmic threat of Ryukotsuki. The game is known for:

If you're interested in playing Getsufumaden: Undying Moon, I suggest checking out the game's official page on the Nintendo eShop or other online stores to learn more about its features, gameplay, and pricing.