Quick answer

In Roblox “Squid Game” experiences, marbles are a separate mini‑game (usually before or after the Glass Bridge) where you bet/guess with marbles to win or lose them. They don’t do anything on the Glass Bridge itself —the bridge is about choosing the right glass panels, not using marbles.

What the Glass Bridge actually is

The Glass Bridge stage in Roblox Squid Game maps works like this:

  • There’s a row of glass panels in two columns.
  • In each “step,” one panel is safe (tempered glass) and the other breaks.
  • If you step on the wrong one, you fall and are eliminated.
  • You must cross before time runs out.

Typical strategies players use:

  • Wait and watch others to see which panels break, then follow the safe path.
  • Or be the first to test panels, memorize the pattern, and rush through.

There’s no marble mechanic built into this part of the game.

What the marbles game does (separate stage)

“Marbles” is its own round, inspired by the show:

  • You’re paired with another player (or sometimes a bot).
  • You start with a set number of marbles.
  • You play a guessing/betting mini‑game (often “odd/even” or similar).
  • If you guess right, you gain marbles ; if wrong, you lose marbles.
  • The goal is usually to take all your opponent’s marbles or end with more than them within a time/round limit.

So in the overall game flow:

  • Marbles game : you wager/guess to win/lose marbles.
  • Glass Bridge : you jump across glass panels; marbles are not used here.

Why people mix them up

You’ll see videos titled things like “Marbles Update! Glass Floor Pushing!” where:

  • Players talk about the marbles round in one segment.
  • Then later they play the glass bridge / glass floor segment.
  • In chat, someone might say “I have pushes” or “I’m good at marbles,” and viewers associate both with the same “bridge” moment even though they’re different stages.

That’s why it can look like marbles “do something” on the bridge, but mechanically they don’t.

TL;DR

  • Marbles = separate betting/guessing mini‑game to win/lose marbles.
  • Glass Bridge = choose the correct glass panels to cross; no marble interaction.

If you tell me which exact Roblox game (link or name), I can describe how that specific version orders the rounds and what the marbles minigame looks like there. Information gathered from public forums or data available on the internet and portrayed here.