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Dip switches used by this game
Alien Syndrome
Manufactured by
Sega,
Released in
1987
ROM Version:
Alien Syndrome (Mega-Tech, SMS based)
Dip Switch:
BIOS_DSW0
1
2
3
4
5
6
7
8
Function
Option
Off
Coin slot 4
Accept*
On
Inhibit
Off
Coin slot 3
Accept*
On
Inhibit
Off
Off
Off
Coin slot 3/4 value
1 Coin/1 Credit*
On
On
On
1 Coin/10 credits
On
Off
Off
1 Coin/2 Credits
Off
On
Off
1 Coin/3 Credits
On
On
Off
1 Coin/4 Credits
Off
Off
On
1 Coin/5 Credits
On
Off
On
1 Coin/6 Credits
Off
On
On
1 Coin/8 Credits
On
Off
On
Coin slot 2 value
1 Coin/1 Credit
Off
Off
On
1 Coin/2 Credits*
On
On
Off
1 Coin/3 Credits
Off
On
Off
1 Coin/4 Credits
On
Off
Off
1 Coin/5 Credits
Off
Off
Off
1 Coin/6 Credits
Off
On
On
2 Coins/1 Credit
On
On
On
Inhibit
Dip Switch:
BIOS_DSW1
1
2
3
4
5
6
7
8
Function
Option
Off
On
On
On
Coin Slot 1 value
1 Coin/1 Credit*
On
Off
On
Off
1 coin/10 credits
Off
Off
On
Off
1 coin/11 credits
On
On
Off
Off
1 coin/12 credits
Off
On
Off
Off
1 coin/13 credits
On
Off
Off
Off
1 coin/14 credits
Off
Off
Off
Off
1 coin/15 credits
On
Off
On
On
1 Coin/2 Credits
Off
Off
On
On
1 Coin/3 Credits
On
On
Off
On
1 Coin/4 Credits
Off
On
Off
On
1 Coin/5 Credits
On
Off
Off
On
1 Coin/6 Credits
Off
Off
Off
On
1 Coin/7 Credits
On
On
On
Off
1 Coin/8 Credits
Off
On
On
Off
1 Coin/9 Credits
On
On
On
On
Inhibit
Off
Off
Off
Off
Time per credit
0:30
On
Off
Off
Off
1:00
Off
On
Off
Off
1:30
On
On
Off
Off
2:00
Off
Off
On
Off
2:30
On
Off
On
Off
3:00*
Off
On
On
Off
3:30
On
On
On
Off
4:00
Off
Off
Off
On
4:30
On
Off
Off
On
5:00
Off
On
Off
On
5:30
On
On
Off
On
6:00
Off
Off
On
On
6:30
On
Off
On
On
7:00
Off
On
On
On
7:30
On
On
On
On
Free Play
Dip Switch:
BIOS_IN0
1
2
3
4
5
6
7
8
Function
Option
Off
Unknown
Off*
On
On
Off
Off*
On
On
Off
Off*
On
On
Off
Off*
On
On
Off
Off*
On
On
Off
Off*
On
On
Dip Switch:
BIOS_J1
1
2
3
4
5
6
7
8
Function
Option
Off
5
Off*
On
On
Off
Unknown
Off*
On
On
Off
Off*
On
On
Off
Off*
On
On
Off
Off*
On
On
Off
Off*
On
On
Off
Off*
On
On
Off
Off*
On
On
ROM Version:
Alien Syndrome (set 1, Japan, old, System 16A, FD1089A 317-0033)
Dip Switch:
SW2
1
2
3
4
5
6
7
8
Function
Option
Off
Demo Sounds
Off
On
On*
On
Off
Lives
2
Off
Off
3*
Off
On
4
On
On
Free Play
On
On
Timer
120
Off
On
130
On
Off
140
Off
Off
150*
On
Off
Difficulty
Easy
Off
On
Hard
On
On
Hardest
Off
Off
Normal*
ROM Version:
Alien Syndrome (set 2, System 16A, FD1089A 317-0033)
Dip Switch:
SW2
1
2
3
4
5
6
7
8
Function
Option
Off
Demo Sounds
Off
On
On*
On
Off
Lives
2
Off
Off
3*
Off
On
4
On
On
Free Play
On
On
Timer
120
Off
On
130
On
Off
140
Off
Off
150*
On
Off
Difficulty
Easy
Off
On
Hard
On
On
Hardest
Off
Off
Normal*
ROM Version:
Alien Syndrome (set 3, System 16B, FD1089A 317-0033)
Dip Switch:
SW2
1
2
3
4
5
6
7
8
Function
Option
Off
Demo Sounds
Off
On
On*
On
Off
Lives
2
Off
Off
3*
Off
On
4
On
On
Free Play
On
On
Timer
120
Off
On
130
On
Off
140
Off
Off
150*
On
Off
Difficulty
Easy
Off
On
Hard
On
On
Hardest
Off
Off
Normal*
ROM Version:
Alien Syndrome (set 4, System 16B, unprotected)
Dip Switch:
SW2
1
2
3
4
5
6
7
8
Function
Option
Off
Demo Sounds
Off
On
On*
On
Off
Lives
2
Off
Off
3*
Off
On
4
On
On
Free Play
On
On
Timer
120
Off
On
130
On
Off
140
Off
Off
150*
On
Off
Difficulty
Easy
Off
On
Hard
On
On
Hardest
Off
Off
Normal*
ROM Version:
Alien Syndrome (set 5, System 16A, FD1089B 317-0037)
Dip Switch:
SW2
1
2
3
4
5
6
7
8
Function
Option
Off
Demo Sounds
Off
On
On*
On
Off
Lives
2
Off
Off
3*
Off
On
4
On
On
Free Play
On
On
Timer
120
Off
On
130
On
Off
140
Off
Off
150*
On
Off
Difficulty
Easy
Off
On
Hard
On
On
Hardest
Off
Off
Normal*
ROM Version:
Alien Syndrome (set 6, Japan, new, System 16B, FD1089A 317-0033)
Dip Switch:
SW2
1
2
3
4
5
6
7
8
Function
Option
Off
Demo Sounds
Off
On
On*
On
Off
Lives
2
Off
Off
3*
Off
On
4
On
On
Free Play
On
On
Timer
150
Off
On
160
On
Off
170
Off
Off
180*
On
Off
Difficulty
Easy
Off
On
Hard
On
On
Hardest
Off
Off
Normal*
ROM Version:
Alien Syndrome (set 7, System 16B, MC-8123B 317-00xx)
Dip Switch:
SW2
1
2
3
4
5
6
7
8
Function
Option
Off
Demo Sounds
Off
On
On*
On
Off
Lives
2
Off
Off
3*
Off
On
4
On
On
Free Play
On
On
Timer
120
Off
On
130
On
Off
140
Off
Off
150*
On
Off
Difficulty
Easy
Off
On
Hard
On
On
Hardest
Off
Off
Normal*
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