The Mold Tentacle lights up in the dark, making it easier for the player to spot from a distance and therefore not to get sniped.
Because of the mold infection it is a risky enemy to encouter, since a single hit can kill the player if at low health.
The player can use a shovel to remove some of the Mold Ground and replace it with e.g. bridges. This way the infection debuff that slows the player wears off and the player can move freely again for a short duration, making it easier to dodge attacks.