How to combine multiple meshes into single mesh?

Hiya,

I have a model here which I’ve used geo nodes on to get these “teeth” sprinkled in an area over the mesh. I intend to import this as an armature into the Source engine, so I think I need to get all the teeth and the base mesh into a singular mesh for performance reasons (Im not really sure why, but the engine complains a lot about several separated meshes. If anyone has info on this, I’d love to know why). I’ve tried using the “Realize instances” node and applying the geo node modifier, which gets me half way there by making the geometry real, but I tried using “Remesh” with the teeth to get it into a singular mesh and it gives me a lot of weird results

How should I combine the base mesh and teeth to get it all as one singular continuous mesh?

Blend file (OneDrive Link. The tentacle without modifers applied resides adjacently if you need to fiddle w/ it)

Try adding and then applying a Weld Modifier…