About Tunnel Rush
Deer Cat Games is credited for Tunnel Rush. The catalog places it under Reaction, records Unity WebGL for this build, and gives 2014 as its release information.
Controls and Getting Started
The catalog record for Tunnel Rush contains no control mapping. If the build shows instructions at launch, those should take precedence over third-party key guesses.
Gameplay Notes
For Tunnel Rush, improvement should come from the behavior of this specific browser build: identify repeatable patterns, avoid changing several things at once, and compare the result on the next attempt.