That's Zero G...not HMS.
Edit: NVM I'm to blind these days XD
I don't see how this is anymore dangerous than a BB-10 or burst.
Lol seeing that there's glass bottles I guess so? XD But the video cracked me up for some reason..?
XD
This is so weird ... agreeed though, it's not really dangerous. It's also not a Beyblade customization, so I'll close this thread. You can share videos in the Betblade Videos topic.