diff --git a/mods/sp/languages/rules/en.ftl b/mods/sp/languages/rules/en.ftl
index cdac22264..99c15b3be 100644
--- a/mods/sp/languages/rules/en.ftl
+++ b/mods/sp/languages/rules/en.ftl
@@ -2559,6 +2559,9 @@ colossus-desc = Heavy duty alien.
      - Crush class: crushable only by Epics
      - Does not receive damage from tiberium fields and all radiations
 
+    Upgrades:
+     - Vinifera Catalysts
+
 mastermind-name = Mastermind
 mastermind-desc = The commando unit of Scrin born with the ability
     to mind control everyone and everything.
diff --git a/mods/sp/rules/creeps.yaml b/mods/sp/rules/creeps.yaml
index 44be833b9..607d7cee5 100644
--- a/mods/sp/rules/creeps.yaml
+++ b/mods/sp/rules/creeps.yaml
@@ -499,6 +499,8 @@ JFISH:
 		RequiresCondition: attack
 	DamagedByTintedCells@Colossus:
 		RequiresCondition: attack
+	DamagedByTintedCells@ColossusBlue:
+		RequiresCondition: attack
 	DamagedByTintedCells@Default:
 		Damage: -30
 	ExplodesAlsoTransported@VisceroidDefault:
diff --git a/mods/sp/rules/defaults.yaml b/mods/sp/rules/defaults.yaml
index 051e23c7e..811125228 100644
--- a/mods/sp/rules/defaults.yaml
+++ b/mods/sp/rules/defaults.yaml
@@ -1017,11 +1017,17 @@
 		DamageInterval: 25
 		LayerName: OrangeRadiation
 	DamagedByTintedCells@Colossus:
-		Damage: 60
+		Damage: 30
 		DamageTypes: EnergyDeath
 		DamageLevel: 5
 		DamageInterval: 25
 		LayerName: ColossusRadiation
+	DamagedByTintedCells@ColossusBlue:
+		Damage: 60
+		DamageTypes: EnergyDeath
+		DamageLevel: 5
+		DamageInterval: 25
+		LayerName: ColossusBlueRadiation
 
 ^AffectedByAPAmmunition:
 	ActorStatValues:
@@ -2136,6 +2142,8 @@
 		RequiresCondition: WebDisable || empdisable
 	DamagedByTintedCells@Colossus:
 		RequiresCondition: WebDisable || empdisable
+	DamagedByTintedCells@ColossusBlue:
+		RequiresCondition: WebDisable || empdisable
 	RA2Chronoshiftable:
 		-TerrainsAndDeathTypes:
 
@@ -2469,6 +2477,8 @@
 		RequiresCondition: empdisable
 	DamagedByTintedCells@Colossus:
 		RequiresCondition: empdisable
+	DamagedByTintedCells@ColossusBlue:
+		RequiresCondition: empdisable
 	RA2Chronoshiftable:
 		-TerrainsAndDeathTypes:
 
diff --git a/mods/sp/rules/environment/world.yaml b/mods/sp/rules/environment/world.yaml
index 7e8f41fff..9c9f1b342 100644
--- a/mods/sp/rules/environment/world.yaml
+++ b/mods/sp/rules/environment/world.yaml
@@ -248,24 +248,29 @@ World:
 		Darkest: 16
 		Brightest: 256
 	TintedCellsLayer@BlueRadiation:
-		Color: 220099
 		Name: BlueRadiation
+		Color: 220099
 		UpdateDelay: 75
 		FadeoutDelay: 150
 		Darkest: 16
 		Brightest: 256
 	TintedCellsLayer@OrangeRadiation:
-		Color: EFFF00
 		Name: OrangeRadiation
+		Color: EFFF00
 		UpdateDelay: 25
 		FadeoutDelay: 150
 		Darkest: 8
 	TintedCellsLayer@ColossusRadiation:
+		Name: ColossusRadiation
+		FadeoutDelay: 25
+		Darkest: 16
+		Brightest: 128
+	TintedCellsLayer@ColossusBlueRadiation:
+		Name: ColossusBlueRadiation
 		Color: 220099
 		FadeoutDelay: 25
 		Darkest: 16
 		Brightest: 128
-		Name: ColossusRadiation
 	WeaponTriggerCells@catalyst:
 		Name: catalystLayer
 		#ShowDebugOverlay: true
diff --git a/mods/sp/rules/infantry.yaml b/mods/sp/rules/infantry.yaml
index 52c47a18d..a9a8d2725 100644
--- a/mods/sp/rules/infantry.yaml
+++ b/mods/sp/rules/infantry.yaml
@@ -1981,6 +1981,7 @@ COLOSSI:
 	Inherits: ^ScrinSoldier
 	Inherits@AUTOTARGET: ^AutoTargetGroundAssaultMoveWithBerserkable
 	Inherits@EXPERIENCE: ^GainsExperience
+	Inherits@VINIFERA: ^AffectedByViniferaCatalysts
 	Inherits@AImicroManagable: ^AImicroManagable
 	Buildable:
 		Queue: Infantry.Shared, Infantry.Scrin
@@ -2006,6 +2007,7 @@ COLOSSI:
 	Passenger:
 		RequireForceMoveCondition: !undeployed
 	-DamagedByTintedCells@Colossus:
+	-DamagedByTintedCells@ColossusBlue:
 	SpawnActorOnDeath@conversion:
 		Actor: chusk
 	SpawnActorOnDeath@conversionUpg:
@@ -2050,7 +2052,12 @@ COLOSSI:
 		SparkWeapon: ColossiBlast
 		Amount: 1
 		Interval: 10
-		RequiresCondition: deployed && !WebDisable
+		RequiresCondition: deployed && !vinifera_catalysts && !WebDisable
+	SpawnSparks@deploy-blue:
+		SparkWeapon: ColossiBlastBlue
+		Amount: 1
+		Interval: 10
+		RequiresCondition: deployed && vinifera_catalysts && !WebDisable
 	WithIdleOverlay@deploy:
 		Sequence: colossideploy
 		Palette: scrinenergystuffs
@@ -2724,6 +2731,8 @@ MOTH:
 		RequiresCondition: deployed || WebDisable || empdisable
 	DamagedByTintedCells@Colossus:
 		RequiresCondition: deployed || WebDisable || empdisable
+	DamagedByTintedCells@ColossusBlue:
+		RequiresCondition: deployed || WebDisable || empdisable
 	Armament@1:
 		Weapon: LurkerProj
 		PauseOnCondition: WebDisable || empdisable || !deployed
diff --git a/mods/sp/rules/vehicles.yaml b/mods/sp/rules/vehicles.yaml
index 17da898b9..f594d921c 100644
--- a/mods/sp/rules/vehicles.yaml
+++ b/mods/sp/rules/vehicles.yaml
@@ -3033,6 +3033,8 @@ LIMPED:
 		RequiresCondition: deployed || empdisable
 	DamagedByTintedCells@Colossus:
 		RequiresCondition: deployed || empdisable
+	DamagedByTintedCells@ColossusBlue:
+		RequiresCondition: deployed || empdisable
 	-ChangesHealth@veinholedrain:
 	-ExternalCondition@veinholedrain:
 	-WithIdleOverlay@veinholedrain:
diff --git a/mods/sp/weapons/scrweapons.yaml b/mods/sp/weapons/scrweapons.yaml
index 86da679e9..59259b4e7 100644
--- a/mods/sp/weapons/scrweapons.yaml
+++ b/mods/sp/weapons/scrweapons.yaml
@@ -102,6 +102,11 @@ ColossiBlast:
 		LayerName: ColossusRadiation
 		AirThreshold: 8c0
 
+ColossiBlastBlue:
+	Inherits: ColossiBlast
+	Warhead@8Radio: CreateTintedCells
+		LayerName: ColossusBlueRadiation
+
 FloatTesla:
 	ReloadDelay: 75
 	Range: 7c0