Powershell script question

Hello,  I am working on a script for school and I have most of it working I have one error I cannot figure out the debug for -  I keep getting an array out of range error on my array.  I have checked my code against the example and it is fine.  does anyone have any ideas?

$playgame =  "false"
$response - ""
$randomno = get-random
 # I wish he would just use this cmdlt instead of the system one which does not work!
$number = 0
$secretword = ""
$attempts = 0
$status = "true"
$guesses = ""
$reply = ""
$tempstring = ""
$vaildreply = ""
$rejectlist = '~!@#$%^&_=|\;".,<>/?:'
$guessesremaining = ""

$words = @()
$words[0] = @("","","","","","","","","","","","","","","")
$words[1] = @("c","o","m","m","a","n","d","e","r")
$words[2] = @("f","l","a","g")
$words[3] = @("t","o","a","s","t","e","r")
$words[4] = @("m","a","r","k","e","r")
$words[5] = @("P","i","c","t","u","r","e")
$words[6] = @("d", "e","s","k")
$words[7] = @("g","o","b","l","e")
$words[8] = @("s","p","e","a","k","e","r")
$words[9] = @("b","a","c","k","y","a","r","d")
$words[10] = @("p","e","n","c","i","l")

function check-answer
    {param($reply)
      $script:guesses = $script:guesses + "" + $reply
       for ($i = 0; $i -le $secrectword.length -1; $i++)
            {
          if($secretword[$i] -ne $reply)

           { if ($words[0][$i] -eq "")
            {$words[0][$i] = "_"}
            }
        else {
            $words[0][$i] = $reply
              }
          }
     }
# I am sorry but I am not artisticly inclined enough to draw a hangman.

write-host "`n`n`n`n welcome to the "
write-host "`n`n`n`n PowerShell Hangman game"

$response = read-host "`n`n`n`n`n`n`n`n`n`n Would you like to play? (y/n)?"

if($response -eq "y")
    {$playgame = "true"
         }

elseif($response -eq "n")
    {clear-host
      "`n`n please visit again soon"
     read-host
         exit
         }

else{
    clear-host
    write-host "`n`n I am sorry,  I did not uderstand your answer, please use `"y`" or `"n`" "
        read-host
     }


While($status -eq "true")
               
           {$tempstring = ""
        $words[0] = @("","","","","","","","","","","","","","","")
        $attempts = 0
        $guesses = ""
        $reply = ""
        $randomno = get-random -minimum 1 -maximum 11
        $secretword = $words[$number]
    
         while($reply -eq "")
            {clear-host
                   $reply= read-host "`n`n`n Please enter a guess"

             if($reply -eq "")

                { continue
                }
              if($reply.length -gt 1)
                {clear-host
                  write-host "`n`n I am sorry I can only process one character at a time"
                  $reply = ""
                  continue
                }

              if((123456789 -match $reply) -or ($rejectlist -match $reply))
                { clear-host
                  write-host "`n`n I am sorry I can only process Alphabetic characters "
                  read-host "`n`n`n`n`n`n`n`n`n`n press enter to continue"
                  $reply = ""
                 }
            
            
            

            clear-host

            $attempts++
    
            check-answer $reply
            $tempstring = ""
            
            for ($i = 0; $i -le $word[0].length -1; $i++)
                {$tempstring = $temstring + "" + $word[0][$i]
                }

            write-host "`n`n Results"
            write-host "----------------------`n"
            write-host "$tempstring `n"
            write-host "---------------------- `n"
            write-host "Letters that have been guessed $guesses `n"
            $guessesremaining = (12- $attempts)

            write-host "number of guesses remaining: $guessesremaining"

            read-host "`n`n`n`n`n`n Press enter to continue "
            
            if($tempstring -notmatch "_")
                { write-host "`n Game Over.  You have guessed the secret word!"`
                   "in $attempts guesses. `n`n"
                  write-host "The secret word was $secretword `n`n"

                  write-host "`n`n`n`n`n`n`n`n`n`n`n`n`n"
                  read-host
                  $reply = "done"
                  continue
                 }

            if($attempts -eq 12)
             {clear-host
               write-host "`n Game Over You have exceeded the maximum number of guesses allowed"
              write-host " The secret word was $secretword `n`n"

              write-host "The best you could do was $tempstring `n`n`n`n`n`n"
              read-host
                   $reply = "done"
                continue
              }
         
        $reply = ""
        }


    $response = ""
    $validreply = "false"

    while($validreply -ne "true")
        {clear-host
         $response =  read-host "`n`n Would you like to play again (y/n)?"
           if($response -eq "y")
            {$vaildreply = "true"
             $status =  "true"
            }

           elseif($response -eq "n")
            {write-host "Please play again soon"
             read-host
             $validreply = "true"
             $status = "false"
            }

    elseif(($response -ne "y") -and ($response -ne "n"))
     {
        clear-host
        write-host "I am sorry,  I can only accept y or n as an answer.  Press enter to try again"
        $validreply = "false"
        read-host
        }


}



}