Rarest easter egg in Dead Cells (Dark Souls reference)

A bet there's even a PvZ game with a Dark Souls reference.

Dead Cells has a lot of Crossovers and hidden easter eggs from very popular indie games, ranging from Hollow Knight to Half-Life to even Terraria

HOLLOW KNIGHT?!

Yessir
You can get the Pure Nail as a weapon from the Hollow Knight lore room and a secret Vessel Outfit by bouncing on an enemy using the Pure Nail 18 times without touching the ground

My goodness! This is amazing news!

Oh sweet!

We've even got a Dead Cells x Risk of Rain crossover between both games

Dead Cells with the Commando Outfit and Huntress's Laser Glaive weapon, and Risk of Rain with a free alternate Beheaded skin for Mercenary

Huh, interesting to see Risk of Rain content.

Damn, that looks cool.