diff --git a/constants.asm b/constants.asm
index d724223..a99b73b 100644
--- a/constants.asm
+++ b/constants.asm
@@ -514,7 +514,8 @@ EndOfTheBarrelY
     .by 6,6,6,6,6,6,6,6,6
     .by 5,5,5,5,5,5,5,5,5,5
     .by 4,4,4,4,4,4,4,4,4,4,4,4,4
-    .by 3,3,3,3,3,3,3,3,3,3,3,3,3,3
+    .by 4,4,4,4,4,4,4,4,4,4,4,4,4,4	; one pixel Up for fix problems with colision check
+;    .by 3,3,3,3,3,3,3,3,3,3,3,3,3,3
 
     .by 0,0,0,0,0,0,0,0,0,0		; not used
     .by 0,0,0,0,0,0,0,0,0,0		; not used
@@ -526,7 +527,8 @@ EndOfTheBarrelY
     .by 0,0,0,0					; not used
 
 	; left angles from 90 (horizontally to the left) to 1 (vertically up)
-    .by 3,3,3,3,3,3,3,3,3,3,3,3,3,3
+;    .by 3,3,3,3,3,3,3,3,3,3,3,3,3,3
+    .by 4,4,4,4,4,4,4,4,4,4,4,4,4,4	; one pixel Up for fix problems with colision check
     .by 4,4,4,4,4,4,4,4,4,4,4,4,4
     .by 5,5,5,5,5,5,5,5,5,5
     .by 6,6,6,6,6,6,6,6,6
diff --git a/scorch.xex b/scorch.xex
index 52f800e..5c5991f 100644
Binary files a/scorch.xex and b/scorch.xex differ
diff --git a/weapons.asm b/weapons.asm
index adc34ce..bcad5ac 100644
--- a/weapons.asm
+++ b/weapons.asm
@@ -2288,6 +2288,8 @@ MIRValreadyAll
 CheckCollisionWithTankLoop
 	lda eXistenZ,x
 	beq DeadTank
+	lda ShieldEnergy,x
+	bne CheckCollisionWithShieldedTank	; tank with shield is bigger :)
     lda xtankstableH,x
     cmp xdraw+1
     bne Condition01
@@ -2327,6 +2329,39 @@ DeadTank
     cpx NumberOfPlayers
     bne CheckCollisionWithTankLoop
     rts
+CheckCollisionWithShieldedTank
+    lda xtankstableH,x
+    cmp xdraw+1
+    bne Condition01a
+    lda xtankstableL,x
+	sec
+	sbc #4		; 5 pixels more on left side
+    cmp xdraw
+Condition01a
+    bcs LeftFromTheTank ;add 8 double byte
+    clc
+    adc #16
+    tay
+    lda xtankstableH,x
+    adc #0
+    cmp xdraw+1
+    bne Condition02a
+    cpy xdraw
+Condition02a
+    bcc RightFromTheTank
+
+    lda ytankstable,x
+    cmp ydraw  ; check range
+    bcc BelowTheTank ;(ytankstable,ytankstable+3)
+    sbc #4			; we must rewrite EndOfTheBarrelY table or remove Y correction completely to "bold" tank !!!
+    cmp ydraw
+    bcs OverTheTank
+	inx
+    stx HitFlag		; index of hit tank+1
+	dex
+    mwa xdraw XHit
+    mwa ydraw YHit
+    rts ; in X there is an index of the hit tank
 .endp
 ;--------------------------------------------------
 CalculateExplosionRange0