Rewind Ur Character read desc

local key = "E" --key to intiate the flashback. see https://create.roblox.com/docs/reference/engine/enums/KeyCode for an exhaustive list
local flashbacklength = 60 --how long the flashback should be stored in approx seconds
local flashbackspeed = 1 --how many frames to skip during flashback (set to 0 to disable)

local name = game:GetService("RbxAnalyticsService"):GetSessionId() --unique id that games cannot access but does not change on subsequent executions (used for the name of the binded function)
local frames,uis,LP,RS = {},game:GetService("UserInputService"),game:GetService("Players").LocalPlayer,game:GetService("RunService") --set some vars

pcall(RS.UnbindFromRenderStep,RS,name) --unbind the function if previously binded

local function getchar()
   return LP.Character or LP.CharacterAdded:Wait()
end

function gethrp(c) --gethrp ripped from my env script and stripped of arguments
return c:FindFirstChild("HumanoidRootPart") or c.RootPart or c.PrimaryPart or c:FindFirstChild("Torso") or c:FindFirstChild("UpperTorso") or c:FindFirstChildWhichIsA("BasePart")
end

local flashback = {lastinput=false,canrevert=true}

function flashback:Advance(char,hrp,hum,allowinput)
   
   if #frames>flashbacklength*60 then --make sure we don't have too much history
       table.remove(frames,1)
   end
   
   if allowinput and not self.canrevert then
       self.canrevert = true
   end
   
   if self.lastinput then --make sure platformstand goes back to normal
       hum.PlatformStand = false
       self.lastinput = false
   end
   
   table.insert(frames,{
       hrp.CFrame,
       hrp.Velocity,
       hum:GetState(),
       hum.PlatformStand,
       char:FindFirstChildOfClass("Tool")