This marks the first Sonic the Hedgehog game to be released on PC.

Hidden Image by Masato Nishimura: At the Sound Test, the player has to select PCM#12 and DA#25, and then press SPACE.

Hidden Image by Kazuyuki Hoshino: At the Sound Test, the player has to select PCM#03 and DA#01, and then press SPACE.

Hidden Image by Takumi Miyake: At the Sound Test, the player has to select PCM#04 and DA#21, and then press SPACE.

Hidden Image by Masahiro Sanpei: At the Sound Test, the player has to select PCM#11 and DA#09, and then press SPACE.

Eighth Special Stage: At the Sound Test, the player has to select PCM#07 and DA#07, and then press SPACE.

An hidden image of Tails by Yasushi Yamaguchi will be displayed.

Edit Mode: At the Sound Test, the player has to select PCM#12 and DA#11, and then press SPACE.

Sound Test: At the title screen, the player has to press DOWN, DOWN, DOWN, LEFT, RIGHT, SPACE.

View staff's Time Attack records: At the title screen, the player has to press RIGHT, RIGHT, UP, UP, DOWN, SPACE.Stage Select: At the title screen, the player has to press UP, DOWN, DOWN, LEFT, RIGHT, SPACE.The same as Sonic Action Pack, except it also includes Sega Smash Pack 2. Included as a demo along with Sonic's Schoolhouse and three other Sega released PC games in 1996.īundle of three Sega PC Sonic games, Sonic R, Sonic the Hedgehog CD, and Sonic & Knuckles Collection, that was released in 2000. There is an option for 30 FPS and 60 FPS.Some of the fading effects are missing.Some sound effects in the Sound Test are missing and the number codes only use two listings rather than three.

The game does not slow down when the Egg Bubble generates its bubbles like in the original.

At the start of the battle against the Egg Tilter, there is no longer a gray platform that prevents the player from leaving the pinball course.

Both the title screen and the Special Stages run much faster than before.

Garden now has the past tracks, although Little Planet looks like in the present. Garden from the Japanese version of the original game, is introduced. A longer FMV version of the intro and ending cutscenes are introduced here.Main article: Sonic the Hedgehog CD#Gameplay Controls Button formation

Sonic the hedgehog windows zone