Bumper Isles
Bumper Isles is a one-button sumo game that plays in the browser on phones, tablets and computers, for two players on one device, or one player against a bot.
Hold to charge, then let go to dash the way your spinning arrow points and shove your rival into the sea. The island shrinks every round, its next strip ripples before it goes, and its shape changes between round, square, ring and twin isles. The first to five points wins, and against the bot you climb a five-rung ladder.
How to play
- Hold to charge, let go to dash where your arrow pointsOn a touch screen: Hold your finger down to charge, let go to dash where your arrow points
- Shove your rival off the island. First to five
- The island shrinks: the rippling edge goes next
The game shows these steps as you play, the first time.
Controls
- Left bumper: Space or W (against the bot any key or a held click or finger)
- Right bumper: Up or Enter
- Tablet: hold your half
Tips
- A full charge takes 0.8 seconds and dashes at 1,000 units a second against 300 for a tap, so a quick tap nudges and a long hold shoves.
- On the Ring isle the lagoon in the middle grows from nothing to 90 units over the round, so the centre stops being the safe place to wait.
- The bot on rung 1 has no edge sense and can dash itself into the sea; from rung 2 up it turns back when the edge is near.
What happens when both bumpers fall in?
If both bumpers leave the island within 0.2 seconds of each other the round is a draw and nobody scores. Otherwise the one still standing takes the point. A bumper counts as fallen when its centre leaves the island, and the first to five points wins the match.
How fast does the island shrink?
It shrinks from a radius of 300 to 130 over 24 seconds, and a band of rings ripples across the strip that will go next, 2 seconds ahead. The shape rotates by round through Round, Square, Ring and Twin, the twin isles being joined by a sand bar.
About this game
Made by Sucia in Houston, Texas. Built with AI assistance, designed and tested by Sucia. Last updated October 4, 2026. It plays in the browser on phones, tablets and computers, with no download and no sign-in; your best scores and progress stay in this browser on this device. Without a pass, every game is free for 5 minutes a game and 30 minutes a day; an Arcade pass removes the limit. How Sucia makes and tests its games.
Also by Sucia
Sucia Studio, a video editor for streamers, runs on Windows and Linux: record, cut long VODs by transcript and make Shorts. YouEdit, a video editing service for stream recordings, turns a recording into a YouTube video, Shorts, titles and the upload text, quoted in credits before it is made. Streaming on Twitch, Kick or YouTube? Sucia Live makes highlight videos and Shorts from your VOD.
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