У вашего броузера проблема в совместимости с HTML5
!!!UPDATE!!! - For Unity 5 follow this tutorial instead, its much easier and better: https://www.youtube.com/watch?v=19r-rZPkIso
This Unity tutorial (Part 1 of 2) will show you how to make your game recognize Touch Inputs from the player and create on-screen buttons that run functions when touched.
Part 2: https://www.youtube.com/watch?v=C726NEjRWzY
Bonus Part 3: https://www.youtube.com/watch?v=M1ONH0Sv37A
TouchLogicV2 (Improved): https://www.youtube.com/watch?v=xuX2T5vSMOo
Visit my website to see the code: http://www.devination.com/2013/06/unity-touch-input-tutorials.html
Twitter: https://twitter.com/Devination3D
To connect your device to unity, download the unity remote app and follow these steps: http://answers.unity3d.com/questions/198853/unity-remote-for-android-not-working-solution.html
Time Breakdown:
0:59 - Difference between mouse and touch Inputs
4:39 - Cons of using Mouse function for touchscreens
6:20 - Talk about inheriting
7:35 - Starting the TouchButtonLogic script
9:48 - Looping through all the touches on screen
12:00 - Check to see if touch is on our guitexture button
13:42 - Check to see if the touch began or ended
15:46 - Demonstrating our script on the touch screen
16:45 - Outro - Overview of what we'll do in the next video