Bug hunt — the world around you

The world's bugs are mostly about timing and who runs what: grabbing a character before it spawns, building a tween and never playing it, and playing sounds on the wrong computer. Three smells, five hunts.

#Hunt one — the too-early character

A player joins and your script instantly errors on player.Character.Humanoid — nil.

Players.PlayerAdded:Connect(function(player)
    local humanoid = player.Character.Humanoid
end)

#Hunt two — type the fix

Even inside CharacterAdded, the character's parts load over a few frames. Make the grab safe so it can't error on an unloaded part.

local humanoid = character.Humanoid

#Hunt three — the statue tween

You built the tween perfectly — TweenInfo, goals, Create — and the part sits there. No error, no motion.

local info = TweenInfo.new(0.5, Enum.EasingStyle.Quad, Enum.EasingDirection.Out)
local goals = { CFrame = coin.CFrame + Vector3.new(0, 5, 0) }

local tween = TweenService:Create(coin, info, goals)

#Hunt four — the silent coin

You click the coin, the coins go up, but there's no sound — on anyone's computer.

-- Script (server)
coin.ClickDetector.MouseClick:Connect(function(player)
    coin.Sound:Play()
    clickEvent:FireServer()
end)

#Hunt five — type the fix

You want the pickup sound to play for the clicking player, right before the reward is reported. Write the line that plays it.

coin.ClickDetector.MouseClick:Connect(function()
    -- play the pickup sound here
    clickEvent:FireServer()
end)

#Hunt six — arrange the pickup

Assemble a coin pickup: a touch, a character, a player, a reward.