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Revision as of 02:11, 9 January 2018 by Juanmv94 (talk | contribs) (Started new article (Chrome T-Rex minigame))
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T-Rex runner

Also known as: Chrome T-Rex minigame
Developers: The Chromium Authors
Platforms: HTML5
Released internationally: 2014


CodeIcon.png This game has unused code.
DevTextIcon.png This game has hidden development-related text.
GraphicsIcon.png This game has unused graphics.
TextIcon.png This game has unused text.
DebugIcon.png This game has debugging material.


The T-Rex minigame from Google Chrome is one of the most known easter eggs ever. It can be accesed pressing the space bar, or touching the dinosaur on touchscreen devices when the offline error is shown. It can also be accesed at chrome://dino.

Hidden buttons

Game Over Dino alternative sprite

Unused debugging routines

Author comments

T-Rex runner is developed in HTML5, making it's source code accesible. This source code is fully commented.

ASCII art collision details

The collision related code have a commented ASCII art to explain how does it work.

    // Make collision box adjustments,
    // Central box is adjusted to the size as one box.
    //      ____        ______        ________
    //    _|   |-|    _|     |-|    _|       |-|
    //   | |<->| |   | |<--->| |   | |<----->| |
    //   | | 1 | |   | |  2  | |   | |   3   | |
    //   |_|___|_|   |_|_____|_|   |_|_______|_|
    //