The term "glitching through walls" in Roblox refers to a technique where a player can go through solid objects like walls or floors that are not intended to be traversed by the game's collision ...

Head down and find the Goblin Cave. Once you reach the entrance of the cave, ask your partner to use their Earth Wall magic to help you glitch through the walls and enter the cave.

Clever Roblox players have the ability to glitch through walls by utilizing a perfectly timed emote.