Bubble Shooter — a free browser puzzle game with no download

A wall of coloured bubbles hangs from the ceiling and a cannon sits under it. You aim, you fire, and the bubble sticks wherever it lands — unless it lands touching two more of its own colour, in which case all three pop. Every few shots a fresh row is pushed in at the top and the whole wall slides down a step, so the board is always coming towards you. When a bubble crosses the red danger line just above the cannon, the run is over and your points are the score.

It plays with one thumb on a phone — drag anywhere on the board to swing the cannon and lift your finger to shoot — and with the arrow keys and space bar on a desktop. Nothing to install, nothing to sign up for, and your best five scores stay on your own device. Five bubble colours are used, and each one also carries a different shape inside it, so the board still reads correctly if you have trouble telling the colours apart.

How to play

• Aim: drag your finger or move the mouse across the board. The dotted line shows the first stretch of the shot.
• Fire: lift your finger, click, or press Space. On desktop ← and → nudge the cannon a degree at a time.
• A shot bounces off the side walls but never off the ceiling — it sticks there.
• Three or more touching bubbles of the same colour pop, for 10 points each.
• Any bubble left with no path back to the ceiling falls, for 20 points each.
• Clear the whole board for a 100-point bonus and a fresh three rows.
• A new row arrives every few shots and the counter in the corner tells you when.

The drop is the game — pops are just how you trigger it

Almost everyone plays their first few runs as a matching game: find three of a colour, shoot the third one, collect thirty points, repeat. That is the tutorial, not the game. The scoring here is deliberately lopsided — a popped bubble is worth 10 and a dropped bubble is worth 20 — because the interesting decision is never "where are three reds", it is "what is holding this section up".

The rule that makes it work is that bubbles only stay on the board if there is an unbroken chain of touching bubbles between them and the ceiling. Colour is irrelevant to that chain; any bubble will hold any other. So a wide slab of the wall can be suspended by a single narrow neck of two or three bubbles, and if you pop that neck, everything hanging beneath it falls at once and pays double. Before every shot, look up rather than across: find the thinnest point where the wall attaches, and ask whether you can reach it. A cluster of three near the ceiling is usually worth far more than a cluster of six dangling at the bottom, because the low cluster is holding nothing up.

That is also why the side walls matter. Shots bounce off the left and right edges at the mirror angle, and because they never bounce off the ceiling, a bank shot is the only way to get in under an overhang — the cannon cannot fire around a bubble, but it can fire past one and come back. The dotted guide deliberately shows only the first stretch of the flight and not the rebound, so judging the bank is a skill the game asks you to build rather than one it hands you. Aim at the wall roughly level with the gap you want and let the mirror do the work.

Two smaller things worth knowing. First, the colour you are handed is always drawn from the colours still on the board, so you will never be given a bubble that cannot possibly match anything — if the last blue disappears while a blue is loaded, the loaded one changes. Nothing in this game is unwinnable by bad luck; if you are stuck, it is because of where you put things. Second, the rows speed up: they arrive every 7 shots at the start, then every 6, 5 and finally every 4 as your score climbs, so a run that starts as a puzzle finishes as a scramble. Bank your big drops early, while you still have room to be fussy about the shot.

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