Great Guns
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Display
Type: raster Horizontal
Resolution: 256 x 224
Refresh: 60 Hz
Processors
2x Zilog Z80 @ 4 MHz
Zilog Z80 @ 3.58 MHz
Audio
AY-3-8910A PSG @ 1.79 MHz
AY-3-8910A PSG @ 1.79 MHz
Channels: 1
Controls
Players: 2
Coin slots: 2
lightgun, 1 button
lightgun, 1 button
DIP Switch Settings
Data from MAME. On later hardware, game settings are typically in the Test/Service Menu, not DIP switches. Learn more
Physical switch positions not available for this machine in MAME. Check the service manual below for DIP switch details.
| Setting | Options | Default |
|---|---|---|
| Starting Number of Bullets/Credit | 60 ✱708090 | 60 |
| Target Size | 7 x 7 ✱9 x 911x117 x 7 ✱ | 7 x 7 |
| Number of points for extra bullet | 1000 ✱2000300040005000600070008000 | 1000 |
| Number of coins or tickets returned | 1 ✱2 | 1 |
| Coin A | 2 Coins/1 Credit4 Coins/3 Credits1 Coin/1 Credit ✱3 Coins/5 Credits3 Coins/4 Credits4 Coins/7 Credits1 Coin/2 Credits2 Coins/5 Credits1 Coin/3 Credits2 Coins/7 Credits1 Coin/4 Credits1 Coin/5 Credits1 Coin/6 Credits1 Coin/7 Credits1 Coin/10 Credits1 Coin/14 Credits | 1 Coin/1 Credit |
| Coin B | 2 Coins/1 Credit4 Coins/3 Credits1 Coin/1 Credit ✱3 Coins/5 Credits3 Coins/4 Credits4 Coins/7 Credits1 Coin/2 Credits2 Coins/5 Credits1 Coin/3 Credits2 Coins/7 Credits1 Coin/4 Credits1 Coin/5 Credits1 Coin/6 Credits1 Coin/7 Credits1 Coin/10 Credits1 Coin/14 Credits | 1 Coin/1 Credit |
| Service Index | Off ✱On | Off |
| Switch Test | Off ✱On | Off |
| Free Play | Off ✱On | Off |
| Player Immortality | Off ✱On | Off |
| Rack Advance | Off ✱On | Off |
| Demo Sounds | OffOn ✱ | On |
| Unknown | Off ✱On | Off |
| Unknown | Off ✱On | Off |
| Free game/coin return | Off ✱On | Off |
| Unknown | Off ✱On | Off |
| Unknown | Off ✱On | Off |
| Unknown | Off ✱On | Off |
| Unknown | Off ✱On | Off |
| Unknown | Off ✱On | Off |
| Unknown | Off ✱On | Off |
| Unknown | Off ✱On | Off |
| ZPU Switch 1 | Off ✱On | Off |
| ZPU Switch 2 | Off ✱On | Off |