Three colored stations, one switch. Route each train to the station that matches its color.
Trains slide down a single straight track from the top. At the junction halfway down, the track splits into three diagonals leading to three colored stations along the bottom: red on the left, green in the middle, blue on the right.
Each train is one of those three colors. Tap anywhere on screen to select a route — your horizontal tap position picks the left, middle, or right station, and the junction now points to it. When the next train crosses the junction, it follows the current selection and ends at that station.
A train arriving at a station matching its color scores a point. A train arriving at the wrong color costs you one of your three lives.
You can change the switch any time. Each tap immediately repoints the junction. Trains already past the junction are committed and cannot be redirected.
Trains spawn faster and travel faster as your score climbs. Several trains may share the track at the same time, so the switch you set is for the next train to cross — not all of them.
Goal: route as many trains as you can before you lose all three lives.
Set the switch before the train enters the diagonal segment, not after. A train commits to whatever station you've selected the instant it crosses the junction; changing your selection later only affects the next train. Tap the correct station early, then watch the train route itself.
Don't watch the train you've already routed — watch the next train in the queue. Once you've committed the current train, your eyes should already be on the next color so your next tap can be early. Late game, trains spawn fast enough that staring at a routed train costs you a beat you needed for the one behind it.
When two trains of the same color come back-to-back, you don't need to tap between them — the switch stays where you left it. Use that breath to plan the third train. Tap selection is sticky until you change it, so quiet stretches let you read further ahead in the queue.