Sonic Cd Plus -

: You can extend your time in these 3D stages by destroying the UFO that appears when your timer is low (usually around 17 seconds).

If you are looking at the official Sonic Origins Plus release, it includes several enhancements to the 2011 "Remaster" version of the game.

: For the first time, you can play through all of Sonic CD as Knuckles, whose gliding and climbing abilities provide new ways to navigate the game's complex, multi-layered stages. Sonic CD Plus

: Adds the Sonic the Hedgehog 2 style Spin Dash, allowing for immediate speed from a standstill.

"Sonic CD Plus" usually refers to , a fan-made hack that modernizes the classic Sega CD title by adding moves from later games, or it may refer to the official Sonic CD inclusion in the Sonic Origins Plus collection. Sonic CD++ (Fan Hack) : You can extend your time in these

: Introduces the Homing Attack to help navigate the vertical, often cluttered level design of Sonic CD .

: To reach a "Good Future," you must find a "Past" sign, maintain high speed for several seconds to travel, and then find and destroy the Robot Generator in that past version of the stage. : Adds the Sonic the Hedgehog 2 style

Whether playing the original or a "Plus" version, the core mechanics remain unique within the series: