

Shooter · New game
Volcano
Volcano turns a Gradius volcano stage into a playable music video, with beat-timed eruptions, classic power-up capsules, and a browser build that supports keyboard, gamepad, and phone or tablet play.
#30 this weekAI-assisted: Code, Graphics, Sound
The game runs in this tab. No install, no account.
The short answer
Volcano is a free browser shooter beta built around a single Gradius-style stage that runs in time with its song. Eruptions, enemy arrivals, and the finale follow the music, while red enemies drop capsules for Speed Up, Missile, Double, Laser, Option, and Shield. Play with arrow keys and Space, a gamepad, or a phone or tablet.
What is Volcano?
Volcano is a free HTML5 shooter beta from GradiusXSuno and the opening episode of Gradius Play. The project takes a single Gradius stage and presents it in two forms: a music video and a playable browser game. The stage is built around its song. Volcanoes erupt on the beat, enemies arrive with the music, and the level closes when the track ends. The playable version is not a separate arrangement; it is the same run shown in the video, captured input by input and replayed frame by frame. The opening drops the title into the stage and turns the letter A into the first volcano. It draws on the volcano stage of Konami's 1985 Gradius. This is a fan-made tribute rather than an official Konami project, and the release carries a beta label while polish continues.
How to play
Your goal is to survive one song-length stage and reach its finale. Movement and firing are constant priorities, and the stage's timing is tied to the soundtrack rather than a separate timer. Red enemies are the key target because they release capsules. Those capsules feed the familiar Gradius upgrade set: Speed Up and Shield sit alongside weapons such as Missile, Double, Laser, and Option. The stage also builds toward a volcano boss that erupts in time with the music, followed by a huge floating mountain, cannon rocks that fire torpedoes, twin volcanoes, and a jump to hyperspace. A high score is saved in the browser, so repeated runs have a score target. The build is a beta, with polish still ongoing; bug reports and ideas can be left in comments. The capsule set gives a clear mid-run objective, while the song marks the finish.
Controls
Keyboard control uses the arrow keys to fly and the Space bar to fire while held. P pauses the action, and Esc returns to the title screen. A gamepad follows the same simple split: the stick or d-pad handles movement, while any face button fires. On a phone or tablet, the device is held sideways. Put a thumb in the bottom-left area and slide to fly; firing is automatic. That makes the phone or tablet layout distinct from keyboard play, where fire must be held. The listed controls cover three input styles: keyboard, gamepad, and phone or tablet. Movement and shooting stay on the main inputs, with pause and title-screen return kept as system actions. The game runs in an HTML5 browser, so the relevant control scheme depends on the hardware being used.
| Input | Action |
|---|---|
| Keyboard | Arrow keys fly; hold Space to fire; P pauses; Esc returns to the title screen. |
| Gamepad | Stick or d-pad flies; any face button fires. |
| Phone or tablet | Turn sideways, slide a thumb in the bottom-left area to fly; fire is automatic. |
Tips for your first run
The first run is easiest to read when the control method is settled before launch. Keyboard players should remember that Space must be held, while phone or tablet players get automatic fire and can concentrate on sliding a thumb in the bottom-left area. The song is the stage clock: eruptions, enemy arrivals, and the ending are tied to it.
- Target red enemies first; they are the capsule source.
- Use the capsule upgrades as the run develops; the set includes Speed Up, Shield, Missile, Double, Laser, and Option.
- Expect the boss to erupt on the beat, then prepare for the floating mountain, cannon rocks, and twin-volcano finale.
- Use P to pause on keyboard and Esc to return to the title screen when a reset is needed.
- On phone or tablet, rotate sideways and keep the steering thumb in the bottom-left area because fire is automatic.
- The stage has a fixed finish line at the end of the song, so the saved high score becomes the longer-term target.
Content and replayability
The current release is one stage, the first episode of Gradius Play, with more episodes stated to be on the way. That single stage is packed with named threats: Fans and Rugals appear alongside Jumpers, Duckers, hatches, and a turret gauntlet. Later beats include a volcano boss that erupts in time with the music, a huge floating mountain, cannon rocks firing torpedoes, the twin volcanoes finale, and a jump to hyperspace. Replay value comes from the score chase and from learning a stage timed to its song. A browser-saved high score gives each attempt a number to beat. The beta status also means feedback has a route: bugs and ideas can be left in comments. Because the stage ends with the song, runs have a clear endpoint. More episodes are promised, but this release is focused on the volcano stage. The named enemy mix and the boss sequence give the stage a checklist of set pieces to reach.
Presentation and performance
Volcano leans on pixel art and a retro side-scrolling shooter look. The central presentation idea is synchronization: volcanoes erupt on the beat, enemies arrive with the music, and the stage ends when the song does. The soundtrack was made with Suno. The pixel work and code were written by Claude, with GradiusXSuno directing, testing, and playing the build. The stage opens with the title falling into the level and the A erupting into the first volcano, which sets the tone for a music-video treatment rather than a static backdrop. The released version is a beta, so polish is ongoing. It runs as an HTML5 browser game, and the high score is kept in the browser. The playable build is tied to the same recorded run shown in the music video, with inputs replayed frame by frame.
Who should play it
Volcano is aimed at players who know Gradius and want a fan-made take on its volcano stage. It should also suit shooter fans who enjoy a stage built around a song, with eruptions and enemy waves keyed to the beat. The free browser format makes it easy to try, and the three control options cover keyboard, gamepad, and phone or tablet play. Score chasers have a browser-saved high score to pursue. Players curious about the Gradius Play experiment, where a stage becomes both a music video and a playable level, are the clearest audience. The beta label suggests tolerance for an evolving build and interest in leaving feedback. Anyone expecting an official Konami release should note that this is an unaffiliated tribute. The current scope is the first episode: a single volcano stage with a boss, a floating mountain, cannon rocks, and a twin-volcano finish.
Screenshots
How we tested it
The build was loaded from games.debutplay.com in a headless Chromium session on ; the canvas started and no request was blocked. The guide was last checked on .
From the developer
VOLCANO (beta) A Gradius stage rebuilt as a music video and a game you can play. VOLCANO is the first episode of Gradius Play, a series where each episode takes a stage from Gradius and turns it into two things: a music video on YouTube, and the game you can play right here. The whole level is set to its song. The volcanoes erupt on the beat, the enemies arrive with the music, and the stage ends when the song does. Watch the music video: The video is this game: it's my own run, recorded button press by button press and replayed frame by frame. Everything you see in it, you can play. How it was made Music: made with Suno.Game and visuals: every pixel and every line of code was written by Claude, with me directing, testing and playing.Inspired by: the volcano stage of Gradius (Konami, 1985). In the stage An opening where the title falls into the level and the A erupts into the first volcanoFans, Rugals, Jumpers, Duckers, hatches and a…
Frequently asked questions
Is Volcano free to play?
Yes. Volcano is a free HTML5 browser shooter. The released build is a beta, and it can be launched in a browser.
What platforms does Volcano support?
Volcano runs in HTML5 browsers. It also includes phone or tablet play with sideways orientation, thumb-slide steering in the bottom-left area, and automatic fire.
How do power-ups work in Volcano?
Shoot red enemies to release capsules. The upgrade set includes Speed Up, Shield, and weapons such as Missile, Double, Laser, and Option, following the Gradius model.
Can the high score be saved?
Yes. The high score is saved in the browser, giving repeated runs a score to beat.
Is there a gamepad option?
Yes. A gamepad can steer with the stick or d-pad, and any face button fires.
Is Volcano affiliated with Konami?
No. Volcano is a fan-made tribute. Gradius is a Konami trademark, and the project is not affiliated with or endorsed by Konami.
What games are similar to Volcano?
The closest matches on DebutPlay are MEATGRINDER, SLIPSTREAM, Back to the Führer. They share the same genre, so the controls and the pace carry over.
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