It’s on the US Patent database and was applied for in 2005 and granted in 2009. So it must be true/real.

dreamcast 2 controller 2

“I found conclusive proof of the protracted development of DC2 while browsing a patent site (as you do). I can’t think of anything witty so please feel free to mock me mercilessly” – Neil.

dreamcast 2 controller

Prefer the one with a clock, if the design process is still ongoing.