So basically dont you know those coool rock effects you see in games nowadays but no one wants to teach you how to make them because they feel special??? Well I’ll be teaching you how since its pretty easy and shouldn’t be gate kept. So First, You needa define your Services, Those Services will be
First add a part inside your script doesnt matter what its called then add a mesh inside and change the mesh id to a block
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local TweenService = game:GetService("TweenService")
local RunService = game:GetService("RunService")
local Debris = game:GetService("Debris")
Thennn you needaa Get ur tween info since we’re gonna be tweening since tweens make everyone happy!
local Tween1 = TweenInfo.new(.2,Enum.EasingStyle.Linear,Enum.EasingDirection.Out,0,false,0)
You can change it as you see fit
Then we need raycast paramaters so we can make sure its colored 
local raycastParams = RaycastParams.new()
raycastParams.FilterDescendantsInstances = {workspace}
raycastParams.FilterType = Enum.RaycastFilterType.Whitelist
Now we need the amount of rocks the time it takes to make the tween how long the rocks stay for, the amount of rocks and how spaced out it is the max size upwards and where it originates
local Amount,Max = 20, 2.5 ---Amount of rocks and max length upwards
local FirstDuration, RocksLength = .5, 3--- How long it takes to tween and when it goes away
local Cframe,Iteration = workspace.Part.CFrame, 20 --- Where the part spawns and how much it expands outwards
Now we do where we want the the rocks to like curve like circular or straightforward
local Angeled360 = 360 / Amount
Now code that makes it worky
local RockModel = Instance.new("Model", workspace.World.Visuals)
Debris:AddItem(RockModel, RocksLength + .25)
for Index = 1, Amount do
--// Calculations
local SizeCalc = math.sin(math.pi / Amount) * Iteration * 2 * 1.01
local PositionCalc = Cframe * CFrame.Angles(0, math.rad(Index * Angeled360), 0) * CFrame.new(0, 0, Iteration) * CFrame.Angles(math.rad(45), 0, 0)
local YAndZ = Max * math.random(50, 120) / 100
local RandomizedForCalc = 5 + Max * 2
local RaycastToSet = CFrame.new(PositionCalc.Position) * CFrame.new(0, RandomizedForCalc, 0)
local Target, Position, Surface = workspace:FindPartOnRayWithWhitelist(Ray.new(RaycastToSet.p, RaycastToSet.upVector * (-RandomizedForCalc * 2)), { workspace.World.Map,})
local InstancedPart = script.Part:Clone()
InstancedPart.CanCollide = false
InstancedPart.Size = Vector3.new(SizeCalc, YAndZ, YAndZ)
if Target then
InstancedPart.Color = Target.Color
InstancedPart.Material = Target.Material
local Mult = 1
if Position.Y < PositionCalc.Position.Y then
Mult = -1
end
local MagZX = PositionCalc * CFrame.new(0, (PositionCalc.Position - Position).Magnitude * Mult, 0)
local ToReturn = CFrame.new(Position, Position + Surface) * CFrame.Angles(math.rad(90), 0, 0)
InstancedPart.CFrame = Cframe * CFrame.Angles(0, math.rad(Index * Angeled360), 0) * CFrame.new(0, 0, Iteration / 2)
InstancedPart.Parent = RockModel
local X, Y, Z = Cframe:components()
local Ax, Ay, Az, A1, A2, A3, A4, A5, A6, A7, A8, A9 = ToReturn:components()
local Tween = TweenService:Create(InstancedPart,TweenInfo.new(FirstDuration, Enum.EasingStyle.Quad, Enum.EasingDirection.Out,0,false,0), {CFrame = CFrame.new(ToReturn.Position, CFrame.new(X, Y, Z, A1, A2, A3, A4, A5, A6, A7, A8, A9).Position) * CFrame.Angles(math.rad(math.random(20, 50)), 0, 0)})
Tween:Play()
Tween:Destroy()
coroutine.resume(coroutine.create(function()
wait(RocksLength)
if InstancedPart then
local Tween = TweenService:Create(InstancedPart.Mesh,TweenInfo.new(.5, Enum.EasingStyle.Quad, Enum.EasingDirection.Out,0,false,0), {["Scale"] = Vector3.new(1, 0, 0)})
Tween:Play()
Tween:Destroy()
local Tween = TweenService:Create(InstancedPart,TweenInfo.new(.25, Enum.EasingStyle.Quad, Enum.EasingDirection.Out,0,false,0), {CFrame = InstancedPart.CFrame * CFrame.new(0, -Max * 1.25, 0)})
Tween:Play()
Tween:Destroy()
end
end))
else
InstancedPart:Destroy()
end
end
--|| Services ||--
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local TweenService = game:GetService("TweenService")
local RunService = game:GetService("RunService")
local Debris = game:GetService("Debris")
local Tween1 = TweenInfo.new(.2,Enum.EasingStyle.Linear,Enum.EasingDirection.Out,0,false,0)
local raycastParams = RaycastParams.new()
raycastParams.FilterDescendantsInstances = {workspace}
raycastParams.FilterType = Enum.RaycastFilterType.Whitelist
local Amount,Max = 20, 2.5
local FirstDuration, RocksLength = .5, 3
local Cframe,Iteration = workspace.Part.CFrame, 20
local Angeled360 = 360 / Amount
local RockModel = Instance.new("Model", workspace.World.Visuals)
Debris:AddItem(RockModel, RocksLength + .25)
task.wait(8)
for Index = 1, Amount do
--// Calculations
local SizeCalc = math.sin(math.pi / Amount) * Iteration * 2 * 1.01
local PositionCalc = Cframe * CFrame.Angles(0, math.rad(Index * Angeled360), 0) * CFrame.new(0, 0, Iteration) * CFrame.Angles(math.rad(45), 0, 0)
local YAndZ = Max * math.random(50, 120) / 100
local RandomizedForCalc = 5 + Max * 2
local RaycastToSet = CFrame.new(PositionCalc.Position) * CFrame.new(0, RandomizedForCalc, 0)
local Target, Position, Surface = workspace:FindPartOnRayWithWhitelist(Ray.new(RaycastToSet.p, RaycastToSet.upVector * (-RandomizedForCalc * 2)), { workspace.World.Map,})
local InstancedPart = script.Part:Clone()
InstancedPart.CanCollide = false
InstancedPart.Size = Vector3.new(SizeCalc, YAndZ, YAndZ)
if Target then
InstancedPart.Color = Target.Color
InstancedPart.Material = Target.Material
local Mult = 1
if Position.Y < PositionCalc.Position.Y then
Mult = -1
end
local MagZX = PositionCalc * CFrame.new(0, (PositionCalc.Position - Position).Magnitude * Mult, 0)
local ToReturn = CFrame.new(Position, Position + Surface) * CFrame.Angles(math.rad(90), 0, 0)
InstancedPart.CFrame = Cframe * CFrame.Angles(0, math.rad(Index * Angeled360), 0) * CFrame.new(0, 0, Iteration / 2)
InstancedPart.Parent = RockModel
local X, Y, Z = Cframe:components()
local Ax, Ay, Az, A1, A2, A3, A4, A5, A6, A7, A8, A9 = ToReturn:components()
local Tween = TweenService:Create(InstancedPart,TweenInfo.new(FirstDuration, Enum.EasingStyle.Quad, Enum.EasingDirection.Out,0,false,0), {CFrame = CFrame.new(ToReturn.Position, CFrame.new(X, Y, Z, A1, A2, A3, A4, A5, A6, A7, A8, A9).Position) * CFrame.Angles(math.rad(math.random(20, 50)), 0, 0)})
Tween:Play()
Tween:Destroy()
coroutine.resume(coroutine.create(function()
task.wait(RocksLength)
if InstancedPart then
local Tween = TweenService:Create(InstancedPart.Mesh,TweenInfo.new(.5, Enum.EasingStyle.Quad, Enum.EasingDirection.Out,0,false,0), {["Scale"] = Vector3.new(1, 0, 0)})
Tween:Play()
Tween:Destroy()
local Tween = TweenService:Create(InstancedPart,TweenInfo.new(.25, Enum.EasingStyle.Quad, Enum.EasingDirection.Out,0,false,0), {CFrame = InstancedPart.CFrame * CFrame.new(0, -Max * 1.25, 0)})
Tween:Play()
Tween:Destroy()
end
end))
else
InstancedPart:Destroy()
end
end
There ya go experiment with the stuff as you please