Free mobile fly and open source

 player, character, humanoid, HRP, flySpeed, flying, bodyVelocity, bodyGyro, TweenService, RunService, Camera, screenGui, loadingFrame, loadingLabel, flyControlsContainer, dpadSize, toggleButton, forwardButton, backButton, leftButton, rightButton, upButton, downButton, uiToggleButton, uiVisible, inputFlags

player = .Players.LocalPlayer
character = player.Character  player.CharacterAdded:()
humanoid = character:()
HRP = character:()
flySpeed = 
flying = 
bodyVelocity = .()
bodyVelocity.Velocity = .(, , )
bodyVelocity.MaxForce = .(, , )
bodyGyro = .()
bodyGyro.CFrame = HRP.CFrame
bodyGyro.MaxTorque = .(, , )
TweenService = :()
RunService = :()
Camera = .CurrentCamera
screenGui = .()
screenGui.Name = 
screenGui.ResetOnSpawn = 
screenGui.Parent = player:()
loadingFrame = .()
loadingFrame.Name = 
loadingFrame.Size = .(, , , )
loadingFrame.Position = .(, , , )
loadingFrame.BackgroundColor3 = .(, , )
loadingFrame.BackgroundTransparency = 
loadingFrame.Parent = screenGui
loadingLabel = .()
loadingLabel.Name = 
loadingLabel.Size = .(, , , )
loadingLabel.Position = .(, , , )
loadingLabel.BackgroundTransparency = 
loadingLabel.Text = 
loadingLabel.TextScaled = 
loadingLabel.Font = .Font.GothamBold
loadingLabel.TextColor3 = .(, , )
loadingLabel.Parent = loadingFrame
flyControlsContainer = .()
flyControlsContainer.Name = 
flyControlsContainer.Size = .(, , , )
flyControlsContainer.BackgroundTransparency = 
flyControlsContainer.Parent = screenGui
dpadSize = .(, , , )
toggleButton = 
forwardButton = 
backButton = 
leftButton = 
rightButton = 
upButton = 
downButton = 
uiToggleButton = 
uiVisible = 
inputFlags = { forward = , back = , left = , right = , up = , down =  }

  ()
 flying = 
 bodyVelocity.Parent = HRP
 bodyGyro.Parent = HRP
 humanoid.PlatformStand = 


  ()
 flying = 
 bodyVelocity.Parent = 
 bodyGyro.Parent = 
 humanoid.PlatformStand = 


  (parent, name, text, pos, size)
  btn = .()
 btn.Name = name
 btn.Text = text
 btn.Size = size
 btn.Position = pos
 btn.BackgroundColor3 = .(, , )
 btn.TextColor3 = .(, , )
 btn.Font = .Font.GothamBold
 btn.TextScaled = 
 btn.BackgroundTransparency = 
 btn.Parent = parent
  corner = .()
 corner.CornerRadius = .(, )
 corner.Parent = btn
  btn


  (visible)
  tweenTime = 
  _, btn  (flyControlsContainer:()) 
   btn:() 
    targetBackgroundTransparency = visible    
    targetTextTransparency = visible    
    tweenInfo = TweenInfo.(tweenTime, .EasingStyle.Quad, .EasingDirection.Out)
    tween = TweenService:(btn, tweenInfo, {
    BackgroundTransparency = targetBackgroundTransparency,
    TextTransparency = targetTextTransparency
   })
   tween:()

   
   btn.Active = visible
   btn.Selectable = visible
  
 


  (button, flagName)
 button.MouseButton1Down:(() inputFlags[flagName] =  )
 button.MouseButton1Up:(() inputFlags[flagName] =  )
 button.MouseLeave:(() inputFlags[flagName] =  )


toggleButton = (flyControlsContainer, , , .(, -, , ), .(, , , ))
toggleButton.MouseButton1Click:(()
  flying 
  ()
  toggleButton.Text = 
 
  ()
  toggleButton.Text = 
 
)
forwardButton = (flyControlsContainer, , , .(, , , -), dpadSize)
backButton = (flyControlsContainer, , , .(, , , -), dpadSize)
leftButton = (flyControlsContainer, , , .(, , , -), dpadSize)
rightButton = (flyControlsContainer, , , .(, , , -), dpadSize)
upButton = (flyControlsContainer, , , .(, -, , -), dpadSize)
downButton = (flyControlsContainer, , , .(, -, , -), dpadSize)
uiToggleButton = (screenGui, , , .(, , , ), .(, , , ))
uiToggleButton.MouseButton1Click:(()
 uiVisible =  uiVisible
 (uiVisible)
 uiToggleButton.Text = uiVisible    
)
(forwardButton, )
(backButton, )
(leftButton, )
(rightButton, )
(upButton, )
(downButton, )

player.CharacterAdded:((newCharacter)
 character = newCharacter
 humanoid = newCharacter:()
 HRP = newCharacter:()
 flying = 
)

RunService.RenderStepped:((deltaTime)
  flying 
   moveDirection = .(, , )
   camCF = Camera.CFrame
   inputFlags.forward  moveDirection = moveDirection + camCF.LookVector 
   inputFlags.back  moveDirection = moveDirection - camCF.LookVector 
   inputFlags.left  moveDirection = moveDirection - camCF.RightVector 
   inputFlags.right  moveDirection = moveDirection + camCF.RightVector 
   inputFlags.up  moveDirection = moveDirection + .(, , ) 
   inputFlags.down  moveDirection = moveDirection - .(, , ) 
   moveDirection.Magnitude >   moveDirection = moveDirection.Unit 
  bodyVelocity.Velocity = moveDirection * flySpeed
  bodyGyro.CFrame = camCF
 
)

.(, ()
  tweenInfo = TweenInfo.(, .EasingStyle.Quad, .EasingDirection.Out)
  tweenFrame = TweenService:(loadingFrame, tweenInfo, { BackgroundTransparency =  })
  tweenLabel = TweenService:(loadingLabel, tweenInfo, { TextTransparency =  })
 tweenFrame:()
 tweenLabel:()
 tweenFrame.Completed:(() loadingFrame:() )
)