You're 90 seconds late. Make it up — but don't shake the passengers!

You drive a commuter train around a 6-station loop line. Go faster and the delay melts away… but every rough start, hard brake or overspeed sends standing passengers staggering, spills their coffee, and fills up the complaint meter. Speed is the goal — and the problem.

HOW TO PLAY

• Tap ▲ POWER / ▼ BRAKE (bottom right) to move the master controller one notch at a time (P1–P5 / N / B1–B7).

• Change notches gently. Mashing the buttons jolts the car and passengers fall.

• Watch the front window: the platform and the 停 (stop) marker come into view. Stop within ±1 m for a PERFECT STOP — happy passengers withdraw complaints!

• Slow down for curves (watch the speed limit sign).

• Arrive too fast and the emergency brake fires — and everyone hits the floor.

• You're relieved of duty if the delay reaches 200 s or complaints reach 10.

• New? Try Training (3 stops) first. The instructor gives tips and lets you retry a section.

PC: ↑/↓ or W/S = change notch, Space = N, Esc = quit, M = sound on/off

FEATURES

• One-thumb notch controls built for portrait phones

• Passenger physics: lean, stagger, fall — and domino into each other

• Forward cab view with platforms, curves and stop markers

• A real recorded rail "clackety-clack" that speeds up with the train

• Training mode with an instructor

• English / 日本語

MADE WITH AI

• Game design & code: Claude (Anthropic)

• Art (passengers, train interior, UI, logos): OpenAI Codex

• Title music and result jingles: Suno

• Rail sound: recorded by me on a real train

• Playtesting & design feedback: my kid (who said the first version was terrible — thanks!)

Made by Hisanori Ando (Tiny Core Inc.) for Slapjam #2 — theme: Speed.