Proto:Sonic Spinball (Game Gear)/Prototype 0307

This is a sub-page of Proto:Sonic Spinball (Game Gear).

The 0307 prototype of Sonic Spinball was released by drx during the February 27, 2008, proto release. This build is significantly incomplete and quite unstable.

Download Sonic Spinball (Prototype 0307) File: Sonic Spinball (Game Gear) Prototype 0307.zip (219 KB) (info)

Note all the info is coming from Sonic Retro.

Various Differences

Proto	Final

The Sega logo is different and has a wave effect after the chant finishes; unfortunately this crashes the game unless Start is pressed quickly enough. Below the logo is the date for a build dated February 28, 1994, evidently incorrect, as it was unchanged until 0321.

Proto	Final

The title screen lacks any copyright information and stays that way until prototype 0413.

• Options screen cannot be accessed. Attempting to access it by using menu ID $17 simply freezes the game.
• No flashing on the title card text.
• Holding START from the screen fade out to the screen fade in will freeze the game if after the fade in there's a cutscene, a level title card, or an intermission screen.
• The third screen of the intro has no sprites.
• No pause text or point display while paused.
• The engine of the game is broken. There's a wonky collision detection and if Sonic stands idle on the ground his sprite glitches. In the frames his sprite glitches he cannot do a spin dash. Sonic controls are broken too because when he moves on the left he goes fast but he can't stop, but if he moves on the right he goes very slow and can stop.
• Flippers move slower.
• Some sprites don't load their graphics correctly.
• Levels can be skipped by pressing Down or 1 while the game is paused. You can also press 2 to move Sonic anywhere. Using debug can glitch up sprites and can be also used when Sonic is about to lose a life to save him.
• Explosions when destroying enemies display garbage tiles instead.
• Secret monitors are not implemented in this build and their secret areas are closed.
• The "launchers" (blocks on the top of two red arrows) in the levels don't work, and can even make Sonic stuck.
• There is a texture in the background near the first paddles in Toxic Pools, where there isn't one in the final.
• Intermission screens are more basic, consisting of yellow text on a blue background.
• In Lava Powerhouse, the secret way near the Start Area is missing. The bonus area with rings it should lead to is present, however.
• Bonus Stages have a different object layout, when you get half of the rings the door is still closed but you can go through it. However this leads to a pit.
• Because of the wonky controls Sonic can get stuck if he jumps near the corners of the Bonus Stage.
• The third Bonus Stage has starts near the bottom of the level, and the water drains as soon as the level starts.
• When you run out of lives or beat the game you get a screen with scrolling stars. This leads to a cutscene of a volcano sinking into the ocean. This would be the final version's the ending sequence, albeit with Sonic and Robotnik sprites.

(Source: Sonic Retro)