What is it?
Two Beat is a rhythm game played with just two buttons, left and right. Hit the matching side as each note touches the line and aim for 1,000,000 points.
The 18-second practice starts with taps and no holds. Retry your best score, then send a friend the same song, part and difficulty.
Short tracks including a Canon variation, easy, normal and hard charts, and a daily song ranked worldwide.
Two of the seven songs use Korean traditional music rhythms, where the two buttons become the heads of a janggu drum: left low, right high, both together a full stroke. In Janggo Festival a teacher plays first, so even a first Korean drum game feels approachable. Play on a keyboard or touch screen, no download needed.
Two Beat ships without a single audio file. Its seven tracks are scores written in code (chord progressions, drum patterns, melodies) that your browser plays through a built-in synthesizer, and every chart is generated from that same score. Five run 59 to 80 seconds: Dawn Bus (lo-fi, 96 BPM), Neon Jump Rope (synth-pop, 124), Cat Parade (chiptune, 138), Shooting Star Swing (110) and Canon Variations, an arrangement of Pachelbel's Canon in D.
The other two, Gutgeori Yard and Jajinmori Market, are built on Korean jangdan cycles. There the buttons become a janggu's two heads: left is the low head (kung), right the high head (deok), both together is deong, and each beat splits into three.
Every track has Easy, Normal and Hard charts, 21 in all, each with its own world ranking, plus two stage modes. Timing is judged against the sound you actually hear: the game subtracts your device's reported output latency, keeps separate sync per input type, and the server recalculates ranked scores from your raw presses.
Gameplay video and screens


How to play the 18-second practice
- Choose the 18-second practice above, then press Start on the ready screen.
- Press the matching screen button when a note touches the bottom line. On a keyboard, F is left and J is right.
- The short practice has no holds. Press both buttons when both lanes have a note together.
- Hit one more note and retry your best score. From the result, send a friend the same song, part and difficulty.
How to play full tracks
- Pick a song and difficulty under Songs. Start with Easy if you're new.
- After a short count-in click, notes fall down two lanes.
- Hit left-lane notes with the left button (F) and right-lane notes with the right button (J), right as they touch the line at the bottom.
- Hold long notes until the tail ends. When both lanes have a note, press both.
- At the end you get your score, rank and judgment counts. Press Play again (R) to retry right away.
Modes
- 18-second rhythm practice
- Eight bars of Neon Jump Rope on Easy: 28 taps, no long notes, and the first note is on the left. It keeps its own best and is never ranked.
- Songs
- Seven tracks on Easy, Normal or Hard. Difficulty buttons show your rank and a lamp (✓ cleared at C or better, ✦ full combo, ★ all perfect), and the menu counts cleared charts out of 21.
- Today's Song
- One Hard chart picked from the date, the same for everyone, ranked until midnight UTC. The first five tracks may be mirrored left to right; jangdan tracks never are.
- Rhythm Playground
- A robot plays a bar and you echo it. Each stage has eight rounds (A, A, A′, A′, B, B, a trick round, a remix); two rounds in a row without a miss start a fever. A C (700,000) unlocks the next of five stages.
- Janggo Festival
- Janggu over kkwaenggwari, buk and jing. The teacher plays the first cycle unscored, and each difficulty's fifth stage is fast hwimori (126 to 150 BPM). Bests stay on this device.
- Section practice
- Opened from a song result: one bar plus two beats of lead-in, at 0.75×, 0.9× or 1×. Never ranked.
- Friend challenge
- A link that opens the exact board you played, including difficulty and mirroring. Accepting needs no account, and it stays open for 7 days.
Good to know
- On a controller, LB/L1 is left and RB/R1 is right. Try buttons in this guide, then close it with START/OPTIONS or B/○. Use the D-pad/stick to navigate menus and the bottom button (A/×) to select.
- Timing: PERFECT ±45 ms · GREAT ±90 ms · GOOD ±135 ms. Score is 90% accuracy + 10% max combo.
- If sound and visuals feel off, adjust sync in ⚙ Settings, especially with Bluetooth earphones.
- Today's Song is a date-picked song on Hard, sometimes mirrored left-right.
At a glance
- Genre
- Rhythm & Music
- Players
- 1
- Price
- Free
- Available languages
- Korean · English · Japanese · Chinese · Spanish
- Platform
- Web browser (no install)
Further reading
Page updated: · See the update log
