So my megatech cabinet is looking more awesome than ever, and I want to post some info about carts and menu editing so here goes:
The games that I have made work on my megatech using custom cartridge design (not a Genesis-to-Megatch) adapter are:
Sonic 1
Sonic 2
Sonic 3
Sonic and Knuckles*
Bio Hazzard Battle
Alien Soldier
Contra Alien wars
Super mario bros (hack)
Rockman megaworld
Xmen 2
Quackshot
Street Fighter2 new challengers
Maui Mallard**
Disney Collection 2in1
World of illusion
MM Ultimate challenge
Mickey Mania
Fantasia
Great circus mystery
Pinocchio
Dragon Fury
Jungle book
Lion King
Aladdin
*has to be "Sonic and Knuckles (W) [p1]"
**has to be region-hex-edited (EUR rom)
I am using mainly JAP region games because I have the Megatech in JAP dip setting. I found out that EUR only games don't work, because the EXT dip region setting means USA, not EUR (for example Donald duck in Maui malard).
About menu editing:
Making the big letters in menu:
Start position (around 0x100) = 8000 0000 F7F6
Big space = 20 F6
Space = 20
Hide transparency = F6
Make transparent = 00
STORY picture = F912
A = 50
B = 54
C = 58
D = 5C
E = 60
F = 64
G = 68
H = 6C
I = 70
J = 74
K = 78
L = 7C
M = 80
N = 84
O = 88
P = 8C
Q = 90
R = 94
S = 98
T = 9C
U = A0
V = A4
W = A8
X = AC
Y = B0
Z = B4
A0 = II
- = F9 E1
Each line in story pages is 28 "small" characters long.
Number of pages in menu is near the start of the file on hex position = 000C
The games that I have made work on my megatech using custom cartridge design (not a Genesis-to-Megatch) adapter are:
Sonic 1
Sonic 2
Sonic 3
Sonic and Knuckles*
Bio Hazzard Battle
Alien Soldier
Contra Alien wars
Super mario bros (hack)
Rockman megaworld
Xmen 2
Quackshot
Street Fighter2 new challengers
Maui Mallard**
Disney Collection 2in1
World of illusion
MM Ultimate challenge
Mickey Mania
Fantasia
Great circus mystery
Pinocchio
Dragon Fury
Jungle book
Lion King
Aladdin
*has to be "Sonic and Knuckles (W) [p1]"
**has to be region-hex-edited (EUR rom)
I am using mainly JAP region games because I have the Megatech in JAP dip setting. I found out that EUR only games don't work, because the EXT dip region setting means USA, not EUR (for example Donald duck in Maui malard).
About menu editing:
Making the big letters in menu:
Start position (around 0x100) = 8000 0000 F7F6
Big space = 20 F6
Space = 20
Hide transparency = F6
Make transparent = 00
STORY picture = F912
A = 50
B = 54
C = 58
D = 5C
E = 60
F = 64
G = 68
H = 6C
I = 70
J = 74
K = 78
L = 7C
M = 80
N = 84
O = 88
P = 8C
Q = 90
R = 94
S = 98
T = 9C
U = A0
V = A4
W = A8
X = AC
Y = B0
Z = B4
A0 = II
- = F9 E1
Each line in story pages is 28 "small" characters long.
Number of pages in menu is near the start of the file on hex position = 000C