: Some developers make the fake glass slightly more transparent or a different shade to reward observant players, though this makes it "possible" rather than "impossible".

: Use a RemoteEvent and a ScreenGui to add a countdown timer, forcing players to make quick (and often wrong) decisions.

: Use meshes with intentionally removed faces to create a "one-way glass" effect where players can see through from one side but not the other.

: Set the support beams to CanCollide = false so players can't simply walk along the edges. Beating the Obby

Place this script in ServerScriptService to randomly choose one breakable panel in every pair.