diff --git a/MANUAL_EN.md b/MANUAL_EN.md
index 9792b9e..db1f4e1 100644
--- a/MANUAL_EN.md
+++ b/MANUAL_EN.md
@@ -24,6 +24,8 @@ On the first screen, you can configure gameplay options:
 
 Select options with cursor keys or a joystick.
 
+The [TAB] key, and on the Atari 5200 console the [5] controller key change the color of the mountains.
+
 The [RETURN] key or a joystick button moves to the next screen.
 
 ## 2. Entering the name of players and selecting the level of computer-controlled players
diff --git a/MANUAL_PL.md b/MANUAL_PL.md
index f9790aa..98ad537 100644
--- a/MANUAL_PL.md
+++ b/MANUAL_PL.md
@@ -23,6 +23,8 @@ Na pierwszym ekranie możemy skonfigurować opcje rozgrywki:
 
 Wybór opcji klawiszami kursora lub joystickiem.
 
+Klawisz [TAB], a na konsoli Atari 5200 klawisz [5] kontrolera zmieniają kolor gór.
+
 Klawisz [RETURN] lub przycisk Joysticka przechodzi do następnego ekranu.
 
 ## 2. Wprowadzanie nazwy graczy i wybór poziomu graczy sterowanych przez komputer
diff --git a/constants.asm b/constants.asm
index 8689ee9..d438c99 100644
--- a/constants.asm
+++ b/constants.asm
@@ -59,6 +59,9 @@ areYouSureText
 lineClear
     dta d"              "
 
+TankColoursTable        .BYTE $58,$2a,$96,$ca,$7a,$ed
+;TankStatusColoursTable  .BYTE $54,$24,$92,$c4,$74,$e4  ; standard order
+TankStatusColoursTable  .BYTE $74,$c4,$24,$e4,$54,$94   ; Adam's order
 ;-----------
 pmtableL ; addressess of the P/M memory for 6 tanks
     .by <(pmgraph+$400)
diff --git a/constants_top.asm b/constants_top.asm
index c17e2f3..ed9232e 100644
--- a/constants_top.asm
+++ b/constants_top.asm
@@ -2,17 +2,14 @@
 
     .IF *>0 ;this is a trick that prevents compiling this file alone
 
-TankColoursTable        .BYTE $58,$2a,$96,$ca,$7a,$ed
-;TankStatusColoursTable  .BYTE $54,$24,$92,$c4,$74,$e4  ; standard order
 ;TanksPMOrder   .BYTE 4,3,1,5,0,2 ; 0-3 = P0-P3 , 4 = M0+M1 , 5 = M2+M3
-TankStatusColoursTable  .BYTE $74,$c4,$24,$e4,$54,$94   ; Adam's order
 TanksPMOrder    .BYTE 4,3,1,5,0,2 ; 0-3 = P0-P3 , 4 = M0+M1 , 5 = M2+M3
 dliColorsBack
     :10 .by $02,$00
 dliColorsFore
     .by $0a											; one mountains color
-;	.by $0e,$0c,$0c,$0b,$0b,$0a,$0a,$09,$09,$08		; mountains colors array
-;	.by $08,$08,$07,$07,$07,$06,$06,$06,$06,$05
+	.by $0e,$0c,$0c,$0b,$0b,$0a,$0a,$09,$09,$08		; mountains colors array
+	.by $08,$08,$07,$07,$07,$06,$06,$06,$06,$05
 CashOptionL ;(one zero less than on the screen)
     .by 0,<200,<800,<1200,<2000
 CashOptionH   
diff --git a/scorch.asm b/scorch.asm
index 55be6ee..fce0b98 100644
--- a/scorch.asm
+++ b/scorch.asm
@@ -26,8 +26,9 @@
 ;---------------------------------------------------
     icl 'definitions.asm'
 ;---------------------------------------------------
-FirstZpageVariable = $61
+FirstZpageVariable = $60
     .zpvar DliColorBack		.byte = FirstZpageVariable
+	.zpvar Gradient			.byte
 	.zpvar JoystickNumber	.byte
     .zpvar xdraw            .word ;= $64 ;variable X for plot
     .zpvar ydraw            .word ;variable Y for plot (like in Atari Basic - Y=0 in upper right corner of the screen)
@@ -1180,16 +1181,18 @@ MakeTanksVisible
 	phy
 	ldy dliCounter
 	lda dliColorsBack,y
-	nop
-	nop
-	nop
-    .IF TARGET = 800
-	    nop  ; necessary on 800 because DLIs take less time, jitter visible without it
-		nop
-    .ENDIF
+	bit Gradient
+	bmi GoGradient
+	ldy #$ff
+GoGradient
+	iny
+;    .IF TARGET = 800
+;	    nop  ; necessary on 800 because DLIs take less time, jitter visible without it
+;		nop
+;    .ENDIF
     sta COLPF1
-;	lda dliColorsFore,y		; mountains colors array
-	lda dliColorsFore		; one mauntain color
+	lda dliColorsFore,y		; mountains colors array
+;	lda dliColorsFore		; one mauntain color
 	sta COLPF2
 	inc dliCounter
 	;ldy dliY
@@ -1226,8 +1229,11 @@ MakeTanksVisible
 ;	lda dliColorsBack
 	lda #0
     sta COLPF1
+	lda dliColorsFore+1
+	bit Gradient
+	bmi @+
 	lda dliColorsFore
-	sta COLPF2
+@	sta COLPF2
     pla
     rti
 .endp
diff --git a/scorch.bin b/scorch.bin
index e3b8011..220b344 100644
Binary files a/scorch.bin and b/scorch.bin differ
diff --git a/scorch.xex b/scorch.xex
index d8c35dd..f60a6b5 100644
Binary files a/scorch.xex and b/scorch.xex differ
diff --git a/textproc.asm b/textproc.asm
index 8bc3838..8bebe1b 100644
--- a/textproc.asm
+++ b/textproc.asm
@@ -110,7 +110,14 @@ OptionsNoRight
     cmp #@kbcode._ret  ; $c ;Return key
     bne OptionsNoReturn
     jmp OptionsFinished
+	
 OptionsNoReturn
+	cmp #@kbcode._tab	; Tab key
+	bne OptionsNoTab
+	lda Gradient
+	eor #$80
+	sta Gradient
+OptionsNoTab
     jmp OptionsMainLoop
 
 OptionsFinished
diff --git a/weapons.asm b/weapons.asm
index 627a097..c1289c5 100644
--- a/weapons.asm
+++ b/weapons.asm
@@ -102,11 +102,13 @@ CheckNextTankBFG
     mva #17 ExplosionRadius
     jsr xmissile
 
-    ; soil must fall down now! there is no other way...
+	jsr SecondRepeat
+	
+/*    ; soil must fall down now! there is no other way...
     ; hide tanks or they fall down with soil
     jsr SoilDown2
 
-    ; it looks like force is divided by 4 here BUT"
+     ; it looks like force is divided by 4 here BUT"
     ; in Flight routine force is multiplied by 2 and left
     ; so, we have Force divided by 2 here (not accurately)
     lsr Force+1
@@ -123,8 +125,9 @@ CheckNextTankBFG
     mva #15 ExplosionRadius
     jsr CalculateExplosionRange0
     mva #sfx_baby_missile sfx_effect
-    jsr xmissile.NoRangeCalc
+    jsr xmissile.NoRangeCalc */
 
+SecondRepeat
     ; soil must fall down now! there is no other way...
     ; hide tanks or they fall down with soil
     jsr SoilDown2
@@ -142,7 +145,7 @@ CheckNextTankBFG
     jsr Flight
     lda HitFlag
     beq EndOfLeapping
-    mva #13 ExplosionRadius
+    mva #14 ExplosionRadius
     jsr CalculateExplosionRange0
     mva #sfx_baby_missile sfx_effect
     jmp xmissile.NoRangeCalc