Whether the haptic effect loops continuously.

local Workspace = game:GetService("Workspace")

local effect = Instance.new("HapticEffect")
effect.Type = Enum.HapticEffectType.GameplayExplosion
effect.Looped = true
effect.Parent = Workspace

-- Start the haptic effect
effect:Play()
-- After two seconds, stop the effect
task.wait(2)
effect:Stop()

Plays the haptic effect.

local Workspace = game:GetService("Workspace")

local effect = Instance.new("HapticEffect")
effect.Type = Enum.HapticEffectType.GameplayExplosion
effect.Parent = Workspace

-- Play the haptic effect
effect:Play()

Along with Radius, specifies the impact position relative to the input device and, effectively, how broadly that impact effects nearby motors. Note that some gamepads do not have both "small" and "large" motors, and that "gamepad large left/right" is not supported on PC.

local Workspace = game:GetService("Workspace")

local effect = Instance.new("HapticEffect")

-- Set the position and radius of impact
effect.Position = Vector3.new(0.5, 0.5, 0)
effect.Radius = 1
effect.Parent = Workspace

effect:Play()

Along with Position, specifies the impact radius relative to the input device and, effectively, how broadly that impact effects nearby motors. Note that some gamepads do not have both "small" and "large" motors, and that "gamepad large left/right" is not supported on PC.

local Workspace = game:GetService("Workspace")

local effect = Instance.new("HapticEffect")

-- Set the position and radius of impact
effect.Position = Vector3.new(0.5, 0.5, 0)
effect.Radius = 1
effect.Parent = Workspace

-- Play the haptic effect
effect:Play()

This method lets you define a custom waveform as a table and apply it to the haptic.

local Workspace = game:GetService("Workspace")

local effect = Instance.new("HapticEffect")

-- Set effect type to custom in order to define a waveform
effect.Type = Enum.HapticEffectType.Custom
effect.Parent = Workspace

-- Define the custom waveform curve through a table
local rampUpWaveform = {
	FloatCurveKey.new(0, 0.3),
	FloatCurveKey.new(100, 0.4),
	FloatCurveKey.new(300, 0.8),
	FloatCurveKey.new(400, 1.0)
}

-- Set waveform through the effect's method
effect:SetWaveformKeys(rampUpWaveform)

Stops the haptic effect.

local Workspace = game:GetService("Workspace")

local effect = Instance.new("HapticEffect")
effect.Type = Enum.HapticEffectType.GameplayExplosion
effect.Looped = true
effect.Parent = Workspace

-- Start the haptic effect
effect:Play()
-- After two seconds, stop the effect
task.wait(2)
effect:Stop()

The haptic type, such as HapticEffectType.GameplayCollision for a large immediate rumble that dies down quickly. The HapticEffectType.Custom value lets you specify a haptic with custom waveform keys defined through SetWaveformKeys().