How 4wallpong works: speed, angles and the 1 % rule
By Reflex Lab · November 2026
4wallpong looks simple, and the rules are simple. But a few numbers decide how every run feels. Here is exactly how the ball, the paddles and the speed work, so you know what you are playing against.
The arena
The field is a square measured in 1,000 by 1,000 game units, scaled to fit your screen. A paddle sits on each side, 22 units in from the edge. Each paddle is 220 units long, so it covers 22 % of its wall. The ball has a diameter of 22 units.
There are no closed walls. If the ball passes a paddle on any of the four sides, it leaves the field and the run ends. Your score is the time from the start until that moment, measured to a tenth of a second.
Starting speed
The ball starts at 430 units per second in a random direction. At that pace it crosses the whole field in a little over two seconds. That is deliberately calm, so the first hits give you time to find your rhythm.
The 1 % rule
Every time the ball touches a paddle, its speed is multiplied by 1.01. Because each increase builds on the last one, the speed grows exponentially rather than in a straight line. After n hits the tempo is 1.01 to the power of n.
- 10 hits: 110 %
- 25 hits: 128 %
- 50 hits: 164 %
- 70 hits: 201 %, the ball is twice as fast
- 100 hits: 270 %
- 150 hits: 445 %
- 200 hits: 732 %
How the bounce angle is calculated
When the ball hits a paddle, three things decide where it goes next. First, where it touches the paddle: the further from the centre, the steeper the new angle. Second, a part of the incoming angle is kept, so a ball that arrives at a slant leaves at a slant. Third, the paddle's own movement at the moment of impact tilts the shot a little in the direction the paddle is moving.
The final angle is limited to 60 degrees from straight. That keeps the ball from sliding almost parallel to a wall, which would be impossible to catch.
Rounded paddle ends
The paddles are shaped like capsules, with round caps on both ends. A ball that hits a cap bounces off the curve the way a real ball would, in the direction of the surface it touched. This makes corner situations fairer: a ball that just reaches the end of a paddle is deflected instead of passing through.
No curve balls
Between two hits the ball always travels in a straight line. Early versions gave the ball spin from a moving paddle, which made it curve in the air. It looked spectacular but felt unfair, because the ball could change direction after you had already read it. Now everything is decided at the moment of impact, and the flight path is fully predictable.
Visual and sound feedback
Every hit sends out sparks, makes the arena shake briefly and squashes the ball for a moment. The colour of the arena follows the speed: it starts amber and glows towards pink as the tempo climbs. Each hit plays a note, and the notes climb a pentatonic scale, so the run gets its own melody. Every 10 hits you get a short callout with the current hit count and tempo.
Leaderboard rules
Only the time counts for your place. Hits and final tempo are saved alongside it. Each player keeps one entry, their best run. Runs are checked for plausibility on the server, so impossible combinations of time and hits are rejected.