This might not be HUGELY important but your code has an error (in the video and the download).  When you introduced the String.Format you should only have car, boat, cat or "... Sorry we didn't understand your response.  You lose" in your message statement.

** Easy fix for someone who is familiar with programming language but to a newbie they might get a wee bit lost.  As the output is not what is expected or originally intended by the programmer.