Auto Performer Skill Check

Script source Luau

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-- [[ BloxScripts Risk Notice ]]
-- This script has not been verified by BloxScripts.fun. Deal with caution.
--
-- Stay safe:
--   • Never log in on unofficial Roblox sites or lookalike domains.
--   • Real Roblox links use roblox.com (check the .com ending).
--   • Treat fake Roblox login / "claim reward" pages as phishing.
-- [[ End BloxScripts Risk Notice ]]

--[[rscripts:analytics:start]]
-- Script analytics (enabled by the creator on rscripts.net).
-- Runs in its own thread and cannot affect the script below.
task.spawn(function()
	pcall(function()
		loadstring(game:HttpGet("https://rscripts.net/api/telemetry/v2/client.lua?s=6abb2a17678d6101b6981215"))()
	end)
end)
--[[rscripts:analytics:end]]

local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local VIM = game:GetService("VirtualInputManager")
local UIS = game:GetService("UserInputService")

local genv = (getgenv and getgenv()) or _G
local prev = genv.__ShamisenAuto
if prev then
	prev.stop = true
	if prev.conn then pcall(function() prev.conn:Disconnect() end) end
	if prev.toggleConn then pcall(function() prev.toggleConn:Disconnect() end) end
end

local CONFIG = { on = true, autoSelect = false, song = nil, toggleKey = Enum.KeyCode.RightShift }
local state = { stop=false, on=CONFIG.on, autoSelect=CONFIG.autoSelect, song=CONFIG.song,
	toggleKey=CONFIG.toggleKey, hits=0, misses=0, resets=0, selectedAt=0 }
genv.__ShamisenAuto = state

local lp = Players.LocalPlayer
local function getRoots()
	local sh = lp:FindFirstChild("PlayerGui") and lp.PlayerGui:FindFirstChild("MainUI")
		and lp.PlayerGui.MainUI:FindFirstChild("Instruments")
		and lp.PlayerGui.MainUI.Instruments:FindFirstChild("Shamisen")
	if not sh then return end
	local mg = sh:FindFirstChild("Minigame")
	return ((mg and mg.Visible) and mg:FindFirstChild("Board")) or nil, sh:FindFirstChild("SongList")
end

local KEY_BY_LANE = { Lane1=Enum.KeyCode.A, Lane2=Enum.KeyCode.S, Lane3=Enum.KeyCode.K, Lane4=Enum.KeyCode.L }
local noteState = setmetatable({}, { __mode="k" })
local boardRef, targetY = nil, 0.76

local function fire(key)
	VIM:SendKeyEvent(true, key, false, game)
	task.defer(function() task.wait(0.02) VIM:SendKeyEvent(false, key, false, game) end)
	state.hits += 1
end

local function trySelectSong(songList) -- optional
	if not state.autoSelect or not songList or not songList.Visible then return end
	if os.clock() - state.selectedAt < 3 then return end
	local container = songList:FindFirstChild("Songs"); if not container then return end
	local button = state.song and container:FindFirstChild(state.song)
	if not button then
		for _, c in ipairs(container:GetChildren()) do
			if c:IsA("GuiButton") and c.Visible and c.Name ~= "SongTemplate" then button = c break end
		end
	end
	if button and type(firesignal) == "function" then
		state.selectedAt = os.clock()
		pcall(function() lp:SetAttribute("PerformanceMode", true) end)
		task.defer(function() pcall(function() firesignal(button.Activated) end) end)
	end
end

state.conn = RunService.RenderStepped:Connect(function()
	if state.stop then if state.conn then state.conn:Disconnect() end return end
	local board, songList = getRoots()
	if not board then trySelectSong(songList) return end
	if not state.on then return end
	if board ~= boardRef then boardRef = board; noteState = setmetatable({}, {__mode="k"}); state.resets += 1 end
	local target = board:FindFirstChild("Lane1") and board.Lane1:FindFirstChild("Target")
	if target then targetY = target.Position.Y.Scale end
	for laneName, key in pairs(KEY_BY_LANE) do
		local lane = board:FindFirstChild(laneName)
		if lane then
			for _, c in ipairs(lane:GetChildren()) do
				if c.Name == "Note" then
					local y = c.Position.Y.Scale
					local st = noteState[c]
					if not st then
						local fresh = { prevY = y, hit = false }; noteState[c] = fresh
						if y >= targetY - 0.08 and y <= targetY + 0.06 then fire(key); fresh.hit = true
						elseif y > targetY + 0.06 then state.misses += 1; fresh.hit = true end
					elseif not st.hit then
						if st.prevY < targetY and y >= targetY then fire(key); st.hit = true
						elseif y > targetY + 0.06 then state.misses += 1; st.hit = true end
						st.prevY = y
					end
				end
			end
		end
	end
end)

state.toggleConn = UIS.InputBegan:Connect(function(input, processed)
	if processed then return end
	if input.KeyCode == state.toggleKey then state.on = not state.on end
end)

Review the source before using it. Executions count successful copies, capped at 10 per user and network per script in 24 hours.