立平 - 中文

"Mic can't hear you" in robot games

This means the speech recognition engine could not detect any human speech.  
If using iPad app, double check you've allowed Microphone access.
 
Suggestions:  
1) be closer to Microphone;
2) play the game in a quiet environment;
3) start saying the word AFTER 'Click to say' is pressed, not at the same time.
 
Here's a demo video: