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-rw-r--r--src/mame/drivers/snk.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mame/drivers/snk.cpp b/src/mame/drivers/snk.cpp
index c30141723be..c4e21a84818 100644
--- a/src/mame/drivers/snk.cpp
+++ b/src/mame/drivers/snk.cpp
@@ -2644,6 +2644,11 @@ static INPUT_PORTS_START( ikarijpb )
// this is accomplished by hooking the joystick input to the rotary input, plus
// of course the code is patched to handle that.
+ // According to a SNK 40th Anniversary Collection screenshot, this bootleg
+ // came from Korea:
+ // "The idea for Guevara's use of tanks with a human torso poking out of the top
+ // came from a poorly-programmed Korean bootleg of Ikari."
+
PORT_MODIFY("IN1")
PORT_BIT( 0x21, 0x01, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1)
PORT_BIT( 0x42, 0x02, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1)