Select the node that has the collision shape
In the Inspector, disable or remove the CollisionShape3D / CollisionShape2D node
If using a MeshInstance3D with generated collision, remove the generated collision node from the scene tree
If using imported collision from a model, disable collision generation in the import settings
Reimport the asset after changing the import settings
If using a StaticBody3D, remove its CollisionShape3D child
If using a CharacterBody3D or RigidBody3D, remove or disable all CollisionShape3D children
If the collision is coming from a TileSet, edit the TileSet collision polygons and delete them
If the collision is coming from a Navigation or physics helper, disable the related collision option in the resource or node settings
Save the scene and run the project again
