Free · No ads · Nothing to buy

Red light, green light online, with marbles

Green light and you move. Red light and you stop — and stopping is much harder than it sounds when you are a rolling marble.

Red Light gameplay

How this one works

The light turns green and the whole pack runs. It turns red and everything has to be still. A marble that is still rolling when the light changes is out on the spot, and momentum does not care about your reflexes. Cross the line to win: rushing is how you lose, and so is waiting too long.

Five trials, five different rules

Same balls, five completely different ways to lose them.

Red Light
Run on green, freeze on red. Move one pixel too late and you are out.
The Hunter
A hungry predator chases the swarm. Stay alive longer than everyone else.
Lava Run
Outrun the LAVA and reach the cave. Last one there is lava.
The Great Race
A dash to the finish through breakable barriers, boosts and a lot of shoving.
The Carousel
Stay on the spinning plate. HOLD the button to pull yourself back in — it burns fuel.

What you need

Nothing. No download, no install, no account, no ads. It opens in the browser you are reading this in, on a phone or on a computer. New here? The code BT-TRIALS gives you 100 coins and a welcome trail the first time you get in.

Questions people actually ask

Is it the same rules as the playground game?
Same rules, harder body. You do not stop when you decide to stop, you stop when your marble runs out of speed, so braking early is the whole skill.
Is it really free?
Yes, and there are no ads. Coins buy extra uses of the in-match boosters and gems buy looks, but every booster button is free on its first use in every run — for you and for the bots — and the super move is never sold, you earn it by playing.
Do I need to download or install anything?
No. There is nothing to download and no account to create. You open the page and you are in a trial.
Can I play it on my phone?
Yes. It works on a phone and on a desktop browser. One tap and you are rolling.