Play Katamari Damacy Online – PS2 Browser Emulator
Use a disc image of a game you own – the file stays on your device and is never uploaded.
Play!: In-game
On the Play! emulator's compatibility tracker, the best result for Katamari Damacy is "In-game" (NTSC-U, SLUS-21008).
Play Katamari Damacy in your browserCompatibility by version
Can you play Katamari Damacy in your browser?
Partly. Play! gets Katamari Damacy into gameplay, but the tracker lists major bugs that prevent playing it through. Use our browser emulator. Keep in mind that the tracker covers Play! on every platform, and its browser version is described by the project as an experiment, so results in a browser can be worse than on a desktop.
Katamari Damacy compatibility by disc version
| Region | Disc ID | Status | Known issues | Report |
|---|---|---|---|---|
| NTSC-U | SLUS-21008 | In-game gameplay is accessible, but major bugs prevent playability. | – | Tracker report tested August 29, 2017 |
Source: Play! compatibility tracker, read October 15, 2026. Status and issue definitions are the tracker's own.
Which Katamari Damacy disc should you use?
The Play! tracker report used here covers one disc: the NTSC-U release, serial SLUS-21008, marked In-game, meaning gameplay can be reached but major bugs prevent it from being playable. The last test was on August 29, 2017, so the result is old, and the tracker covers Play! in general rather than the browser build specifically.
The tester said most collision issues were fixed, with characters no longer falling through the floor, but collision is still not accurate enough for the game to be fully playable, and you can get stuck in parts of the scenery you are not visually touching. Wikipedia says Europe never got an official release, so no PAL disc is expected, and no Japanese disc is covered by the report used here.
What testers reported for Katamari Damacy
Notes from the volunteers who tested Katamari Damacy on Play! and filed the tracker reports. They describe the emulator at the time of each test; newer builds may behave differently, and the browser version can perform worse than desktop.
NTSC-U (SLUS-21008), tested August 29, 2017
- Most collision issues are fixed (characters no longer fall through the floor), but it is still not accurate enough to be fully playable.
- You can get stuck in parts of the scenery that you are not even visually touching.
Source: tracker report, tested on this Play! build.
How to play Katamari Damacy in your browser
- Make a disc image (for example an ISO) from your own copy of Katamari Damacy. We do not provide game files.
- If you have a choice of versions, the NTSC-U release (SLUS-21008) has the best reported result.
- Open our browser emulator in a recent version of Chrome or Firefox.
- Pick your disc image. Play!.js reads the file locally inside your browser (as its source code shows); it is not uploaded.
Katamari Damacy controls in the browser emulator
Play!.js is played with the keyboard. Its default layout maps the PS2 controller like this; the browser build sets up no gamepad bindings by default. Click the game screen once before you start: the emulator listens for key presses on its game screen, so keys only register while it has focus.
| PS2 controller | Keyboard |
|---|---|
| D-pad | Arrow keys |
| Left analog stick | T / F / G / H (up / left / down / right) |
| Right analog stick | I / J / K / L |
| Cross ✕ | Z |
| Circle ○ | X |
| Square □ | A |
| Triangle △ | S |
| L1 / L2 / L3 | 1 / 2 / 3 |
| R1 / R2 / R3 | 8 / 9 / 0 |
| Start | Enter |
| Select | Backspace |
Source: default bindings in the Play! source code (Source/ui_js/Main.cpp). Number keys are read from the top row, not the numeric keypad.
About Katamari Damacy (PS2)
Katamari Damacy is a 2004 action puzzle game that Namco developed and published for the PlayStation 2. You play a tiny prince whose father, the King of All Cosmos, has accidentally destroyed the stars, the constellations and the Moon. The prince repairs the sky by rolling a sticky ball called a katamari around, picking up bigger and bigger things, from thumbtacks to people to mountains, until the ball is large enough to become a star. The story and characters are stylized and surreal, and the article says they celebrate and satirize parts of Japanese culture.
Designer and director Keita Takahashi had trouble pitching the idea inside Namco and ended up developing it with student help from the Namco Digital Hollywood Game Laboratory, for less than US$1 million. The game came out in Japan on March 18, 2004, and in North America on September 21, 2004, where Namco Hometek published it. Wikipedia says it was never officially released in Europe. It received critical acclaim, became a surprise hit and won several awards, and its success led to the wider Katamari series.
| Developer | Namco |
|---|---|
| Publisher | Namco (Japan), Namco Hometek (North America) |
| Genre | Puzzle, action |
| Released | North America: September 21, 2004 · Japan: March 18, 2004 |
Source: Wikipedia, read October 15, 2026.
How Katamari Damacy plays
You steer the prince as he rolls the katamari through houses, gardens and towns. Steering uses both analog sticks of the DualShock, which Wikipedia compares to the arcade game Battlezone, and further controls give a burst of speed or turn the prince around to the ball's far side. Anything smaller than the katamari sticks on contact, while larger objects act as hurdles, and crashing into them can knock things loose. Size, weight and surface area decide what sticks, so long thin items like pencils can be picked up and change how the ball rolls.
As the ball grows, former obstacles become collectible and blocked areas open up. Animals such as cats chase the ball and knock things off it until it grows large enough to scare them away. The King's usual mission is Make a Star, where you must reach a target size within a time limit. Other missions set specific collecting goals, such as gathering as many of one item as possible or finding the largest object you can. Any level also offers a score attack, and an exceptionally large katamari can unlock an eternal mode with no time limit. Each level hides two secret items, including a royal present containing something the prince can wear.
A two-player mode uses a vertical split screen. Each person plays as the prince or one of his cousins, racing in a compact arena to gather more objects than the rival within three minutes. Players can ram each other to dislodge items, and a big enough lead lets one roll up the other's katamari.
Sources: Wikipedia: Katamari Damacy, Play! compatibility tracker: SLUS-21008 (read October 15, 2026). Written in our own words from these sources.
Other ways to play Katamari Damacy
- Desktop emulator: PCSX2 is the long-standing desktop PS2 emulator; check its own compatibility list for Katamari Damacy.
- Static recompilation: Not ported. As of October 14, 2026, PS2 Web Recomp has brought up two games: Gran Turismo 4 and God of War II. What PS2 Web Recomp is.
Katamari Damacy emulator FAQ
Is there a Katamari Damacy website to play online?
We are not aware of an official way to play Katamari Damacy online. What exists are browser-based PS2 emulators, such as Play!.js, that run a disc image of the game you own. We do not host or link to game files.
Do I need a PS2 BIOS to run Katamari Damacy?
Not with Play!. It emulates the PS2 system software at a high level, so no BIOS file is required.
Which version of Katamari Damacy has been tested in Play!?
The tracker report covers the NTSC-U disc, SLUS-21008, marked In-game and last tested on August 29, 2017. Wikipedia says there was no official European release, and no Japanese disc is covered by the report used here.
What are the known problems with Katamari Damacy in Play!?
The tester said most collision problems were fixed, so characters no longer fall through the floor. Collision is still not accurate enough for full playability, and the ball can get stuck on parts of the scenery it is not visibly touching. The report is from 2017.
How long is Katamari Damacy?
Wikipedia notes that critics found the game relatively short and repetitive, and says finishing it takes under ten hours. It also says at least one reviewer felt the controls, soundtrack and humor made up for the similar goals in each level.
Is there a sequel to Katamari Damacy?
Yes. We Love Katamari, the direct sequel on PlayStation 2, was released internationally in 2005 and 2006. Wikipedia says it adds features such as co-operative play, and that Electronic Arts published it in Europe.
Can I save my progress in the browser?
Play!.js keeps save data only in memory while the page is open, so it is lost when you close or reload it. The tracker report does not describe saving, so how well it works in the browser is untested.
Who made Katamari Damacy?
Namco developed and published it, with Keita Takahashi as director and Yuu Miyake as the main composer. Wikipedia says Namco brought in the Osaka-based studio Now Production to help bring the game to the PlayStation 2.
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