It wouldn't follow the Jbeam shape so it would be like a meshslap lol but theoretically you can put anything there
I think y'all would be interested in this game called Among Us. https://store.steampowered.com/app/945360/Among_Us/
that's pretty bold of you to assume he didn't regret it after several braindead youtubers attracted a swarm of kids to start unironically using it pal
Changing the weight, size, stiffness, etc. greatly affects the walking mechanics and makes the Jbeam almost unusable but it IS possible. Adding new nodes and beams on top of the structure doesn't seem to break it too much though. So you can make the current Jbeam non-collidable and add your own one on top. Of course that's just for the top half, the bottom must stay as it is or else it won't walk. The downside is that it will increase the weight which will impact the jump height.
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