Parade Float Coasters

Saw this video the other day. Looks pretty sketchy:

Found it an interesting concept so I looked for others like it. This one from the Rose Parade is pretty impressive.

Seems more reliable than Intamin...

The designer of the coaster in the first video seemed to take the B&M heartline concept and apply it to the head. Dude's head stayed in the exact same place through the loop.

I thought it was going to be a Rose Parade evac for a second.