Proto:Gain Ground (Genesis)

This page details one or more prototype versions of Gain Ground (Genesis).

  This prototype is documented on Hidden Palace.

This prototype is dated July 27, 1990; over five months before the game was released.

General

• The attract mode lacks stage music.
• In the status bar, "STAY" was changed to "LEFT".
• There is no "PAUSE" text displayed on-screen when the game is paused.
• The graphic transition between rounds is messed up.

ROM Header

Prototype	Final
SEGA MEGA DRIVE (C)SEGA 1990.JAN GAIN GROUND GAIN GROUND GM 00000000-00	SEGA MEGA DRIVE (C)SEGA 1990.DEC GAIN GROUND GAIN GROUND GM 00004036-00

The date in the ROM header is nearly a full year earlier than the final release is.

Controls

The buttons are mapped differently in the prototype.

	Prototype	Final
A	Normal attack	Special attack
B	Special attack	Normal attack
C	Nothing	Special attack

Title Screen

Prototype	Final

• The static in the background is gray instead of brown. It was also reduced from four colors to two.
• The text at the bottom of the screen uses a completely unique graphic and font.
• The space for the text was also expanded vertically.
• Pressing Start goes straight into the game; no "1 PLAY START"/"2 PLAY START"/"OPTIONS" menu.

Ranking

Prototype	Final

Some of the default names in the high score screen were changed. These are likely developer names. Their default scores were also significantly increased.

RANK	NAME (Proto)	NAME (Final)	ROUND	STAGE	SCORE (Proto)	SCORE (Final)
1	OKA	OKA	2	2	999	5000
2	IKU	IKU	2	1	800	4000
3	I.O	BOO	2	4	700	3000
4	KAB	AH	1	8	600	2000
5	N.O	N.O	1	7	500	1000
6	OH	KAN	1	4	400	800
7	NAO	SZK	1	6	300	600
8	OK	T.K	2	1	200	500
9	BE	S.W	1	8	100	500
10	AOK	T.W	1	2	90	400

Text

Text displayed after completing a boss level.

As with the original arcade version, one of these messages will appear at the bottom of the results screen after completing a level:

$ NOW YOU LOOK OUT.  
$ GO FOR YOUR GLORY. 
$ YOU LOOK LIKE BRAVE
$ONE.                
$ NEXT STAGE IS NOT  
$EASY.               
$ NOW TRY NEXT STAGE.
$ YOU HAVE REPRESSED 
$THIS EPOCH.         
$ NOW YOU GO TO NEXT 
$EPOCH.              

The text was removed from the final release for some reason.

Levels

All of the stages in Rounds 4 and 5 are unfinished. The background graphics are largely complete, though lacking in animation and collision detection. Enemies have not been properly placed; typically just a single glitched enemy appears in the upper-left corner of the field. Killing this enemy completes the level.

The game will crash after finishing Round 5, Stage 6, making the game unbeatable.

Round 4, Stage 3

Prototype	Final

The alternate exit on the right side of the field was removed. Some pixels in the top corners of the arcade machines were edited. However, tiles for the arcade machines at the top of the field somehow became misplaced.

As an aside, the arcade machines featured in this stage are Racing Hero (top-left), After Burner (bottom-left), and G-LOC: Air Battle (bottom-right).

Round 4, Stage 6

Prototype	Final

The alternate exit on the left side of the field was removed.