A new roller coaster is coming to Six Flags Fiesta Texas in San Antonio, and it looks like it's pretty much the most terrifying thing ever constructed.

It's a 4D coaster.

What does that mean? It means that while you're strapped into your seat riding along the track, your seat is also flipping 360 degrees independently. Pair that up with a couple of drops that are more than 90 degrees and you've got the future scene of many, many heart and anxiety attacks.

Source: Free Beer & Hot Wings