diff --git a/src/mame/drivers/8080bw.cpp b/src/mame/drivers/8080bw.cpp
index 83e290a697f..4b1d80ed3a3 100644
--- a/src/mame/drivers/8080bw.cpp
+++ b/src/mame/drivers/8080bw.cpp
@@ -2159,6 +2159,9 @@ INPUT_PORTS_END
 static INPUT_PORTS_START( jspecter )
 	PORT_INCLUDE( sicv )
 
+	PORT_MODIFY("IN1")
+	// Hold right when starting game to play game B
+	PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(1)
 	PORT_MODIFY("IN2")
 	PORT_DIPUNKNOWN_DIPLOC( 0x04, 0x00, "SW1:3" )
 INPUT_PORTS_END