- Back to: Sonic the Hedgehog (Game Gear prototype).
There is no Sega logo in the prototype - the game jumps straight to the title screen like the Master System version.
The "1"s in the copyright date are the same as they were in the Master System version. There is also no ™ symbol regardless of system region.
The map screen uses the same smoke graphics and similar colours to the Master System version, but the stage points are misplaced.
The "Game Over" screen is corrupted.
Sonic starts in an odd position, slightly further ahead of two Rings. Some of the new Game Gear scenery is in place (such as the sunflowers), but parts are still missing. Sonic is also still using graphics from the Master System version of the game. In the final, the character would be made slightly smaller to better suit the Game Gear's resolution (though no such provisions were made for future Master System-to-Game Gear conversions). The camera is also less "rigid" in the prototype - Sonic has to move closer to the edge for the screen to start scrolling vertically in the final game.
The Ring icon, in the upper right corner, is shifted two pixels to the right. The numbers for the Ring counter and the time are shifted two pixels to the left. Finally, the icon and text of the lives, in addition to keeping from the Master System version the "x" sign in front of the number of remaining lives, are shifted up by one pixel.
The developers are still playing with this totem pole. It's five "heads" high in the Master System and only two in the Game Gear final, but here it's three.
The mountains in the background are still using Master System colours.
When he becomes invincible, Sonic has two stars flashing on him, just like the Master System version. In the Game Gear final, the animation has been changed, and four stars now flash and spin around him.
Sonic changes colour when he nears the Bonus Panel. This change can also be found in the Game Gear final, but is not present in the Master System version.
Beating Act 1 will restart the player from the beginning. That is, unless they've hit the Arrow monitor, in which case they'll be taken to the level's mid-point. This is a one-level demo of the game so no other stages can be accessed during normal play.
Every time this Act is "restarted", either after being cleared or a game over, a strip of ground tiles graphics app hovering in mid-air appears. This is thought to be a glitch from the porting process, and disappears after repeatedly moving the camera away from it. This glitch doesn't appear if the Act is restarted because Sonic dies or is started for the first time after the game is launched.
|Master System version
|Game Gear prototype
|Game Gear final