diff --git a/src/Dodge/Creature.hs b/src/Dodge/Creature.hs
index 39b1104b5..f7c86028e 100644
--- a/src/Dodge/Creature.hs
+++ b/src/Dodge/Creature.hs
@@ -191,7 +191,7 @@ testInventory = IM.fromList $ zip [0..]
 --    , makeTypeCraftNum 1 TRANSMITTER
     , makeTypeCraftNum 10 HARDWARE
     , makeTypeCraftNum 3 SPRING
---    , makeTypeCraftNum 10 CAN
+    , makeTypeCraftNum 10 CAN
 --    , makeTypeCraftNum 3 TIN
     , makeTypeCraftNum 3 PLANK
 --    , makeTypeCraftNum 1 MOTOR
diff --git a/src/Dodge/Data.hs b/src/Dodge/Data.hs
index 81c0320af..594234e5d 100644
--- a/src/Dodge/Data.hs
+++ b/src/Dodge/Data.hs
@@ -525,6 +525,10 @@ data Beam = Beam
 data BeamType 
     = BeamCombine 
         {_beamCombine :: (Point2 , (Point2,Point2,Beam) , (Point2,Point2,Beam)) -> World -> World}
+    | BeamItemParamsCombine 
+        {_beamCombine   :: (Point2 , (Point2,Point2,Beam) , (Point2,Point2,Beam)) -> World -> World
+        ,_beamItemParams :: ItemParams
+        }
     | BeamSimple
 
 {- Objects without ids.
diff --git a/src/Dodge/Item/Weapon/BatteryGuns.hs b/src/Dodge/Item/Weapon/BatteryGuns.hs
index 4466eff90..bdbafb155 100644
--- a/src/Dodge/Item/Weapon/BatteryGuns.hs
+++ b/src/Dodge/Item/Weapon/BatteryGuns.hs
@@ -223,8 +223,8 @@ lasGunDual = lasGun
     & itType .~ LASGUNDUAL
     & itParams .~ DualBeam
         { _phaseV = 1
-        , _lasColor = yellow
-        , _lasColor2 = yellow
+        , _lasColor = orange
+        , _lasColor2 = blue
         , _lasCycle = 0
         , _lasDamage = 11
         , _lasBeam = BeamCombine lasBeamCombine
@@ -388,14 +388,23 @@ tractorGunPic it =
     col = brightX 2 1.5 $ mixColors amFrac (1-amFrac) green red
 -- | assumes that the item is held
 shootTeslaArc :: Item -> Creature -> World -> World
-shootTeslaArc it cr w = w & randGen .~ g
-    & instantParticles .:~ aTeslaArcAt col newarc
-    & creatures . ix (_crID cr) . crInv . ix (_crInvSel cr) . itParams . currentArc ?~ newarc
+shootTeslaArc it cr w = w'
+    & creatures . ix (_crID cr) . crInv . ix (_crInvSel cr) . itParams .~ ip
   where 
+    (w',ip) = shootTeslaArc' (_itParams it) pos dir w
     pos = _crPos cr +.+ aimingMuzzlePos cr it *.* unitVectorAtAngle dir
     dir = _crDir cr
+
+shootTeslaArc' :: ItemParams -> Point2 -> Float -> World -> (World,ItemParams)
+shootTeslaArc' ip pos dir w = 
+    (w & randGen .~ g
+       & instantParticles .:~ aTeslaArcAt col newarc
+    , ip & currentArc .~ Just newarc
+    )
+  where
     (col,g) = takeOne [white,azure,blue,cyan] & runState $ _randGen w
-    newarc = createArc (_itParams it) w pos dir & evalState $ _randGen w
+    newarc = createArc ip w pos dir & evalState $ _randGen w
+
 
 createArc :: ItemParams
     -> World
@@ -540,8 +549,11 @@ splitBeamCombine (p,(a,b,_),(x,y,_))
 
 teslaBeamCombine :: (Point2,(Point2,Point2,Beam),(Point2,Point2,Beam))
     -> World -> World
-teslaBeamCombine (p,(a,b,_),(x,y,_)) 
-    = instantParticles .:~ lasRayAt yellow 11 1 p (argV (normalizeV (b-.-a)+.+normalizeV (y-.-x)))
+teslaBeamCombine (p,(a,b,bm),(x,y,_)) w
+    = w'
+  where
+    dir = argV (normalizeV (b-.-a)+.+normalizeV (y-.-x))
+    (w',ip) = shootTeslaArc' (_beamItemParams $ _bmType bm) p dir w
 
 lasRayAt :: Color -> Int -> Float -> Point2 -> Float -> Particle
 lasRayAt col dam phasev pos dir = LaserParticle