60
seconds
Words come down a glowing note highway as letter gems, and a synthesised band plays underneath. Type each letter right as its gem reaches the line and the melody plays itself. Miss too many and the song falls apart.
Each word sits on a musical phrase. Its letters land on quarter notes and eighth notes, and the gap between words is a rest, so you never type a space. The highway has five lanes that follow your fingers: left pinky and ring, left middle, left index, right index, then right middle to pinky. A word like "quick" swings from the far left lane to the right and back, the way your hands do.
Press a letter and the game finds the nearest gem with that letter and checks your timing. Within 45 milliseconds is a Perfect, 90 is Great, 140 is Good. A press that matches no gem at all breaks your combo, and so does a gem that slides past the line untouched.
The backing track is generated live in your browser: kick, snare and clap, hi-hats, a bass line and a pad chord progression. It starts at 90 BPM and steps up every verse and chorus, reaching 140 by the end. Advanced runs from 100 to 160 with more eighth notes and longer words. A full song lasts a little over two minutes.
The drums and the highway run on the same audio clock, so the beat bars you see are exactly where the kick drum lands. If you play with sound off the game still works on its own timer, but the beat really does help.
Most typing practice rewards raw speed. Key Hero rewards evenness. Hitting letters on a steady pulse trains the same smooth, unhurried rhythm that fast typists have, and the results card tells you whether you tend to press early or late, down to the millisecond. If you keep rushing, slow your hands down and type with the drums.
No. Spaces are rests in the music. Only letters are notes, and pressing space does nothing.
Turn sound on in Settings if you can. The game syncs gems to the audio clock and allows for your output latency, and playing by ear is much easier than playing by eye.
The tempo climbs from 100 to 160 BPM, more letters fall on eighth notes, words are longer and misses drain the rock meter faster.