Ok asa Easter egg joke mount I think it would be cool because although the first app was the original idea the video came than the app so who has copyright 1 2 or 3 ???? Soo it is possible that the devs could have it as a 1 in 100 chance of one appearing during the space travel or as a mount I shal ride it but first I must break it in using :fusrohdah:
I can't use what comes to mind when it comes to treadmill-dinosaurs because I so only sore to a raccoon I would not mention it
As a nod to Terraria, you should be able to ride Giant Bouncy Balls and get an explosive damage bonus.
as long as we're talking about joke mounts... You're character gets on all fours, and a horse-like-creature regally places a saddle on you, and then sits on it.