coding Find the murder

@echo off
cls
echo Loading Find the murder...
ping localhost -n 5 >nul
cls
@echo off
color 0a
:loop
:menu
echo Hello there, a case about a murder has just begin.
echo Would you like to solve the case?
echo y/n
set /p start=

if %start% == Y goto policestation
if %start% == y goto policestation
if %start% == N goto menu
if %start% == n goto menu

:policestation
echo This case is going to be dangerous, so you have to get some stuff with you before you go.
echo 1) Pick your gun and take on the protection clothes and got a picture.

set /p number=

if not defined number (
cls
goto loop
)

if %number% == 1 echo You can protect your self with the gun.
pause;
cls
echo I wish you best of luck, but be careful out there.
pause;
goto outside

:outside
cls
echo You stand outside the policestation.
echo Would you go left or right?
echo 1) left
echo 2) right

set /p number=

if not defined number (
cls
goto loop
)

if %number% == 1 goto left
if %number% == 2 goto right
cls

:left
cls
echo A pedestrain walk by.
echo Would you like to talk or let him go?
echo 1) talk.
echo 2) let pedestrain go past.

:right
cls

set /p number=

if not defined number (
cls
goto loop
)

if %number% == 1 goto talk
if %number% == 2 goto let pedestrain go past

:talk
echo You stopped the pedestrain and asked a few questions.
echo you "Have you seen this guy?"
echo pedestrain "yeah, I saw someone like him"
echo pedestrain "when you're a cop, i think that you can handle him"

:let pedestrain go past
echo You wouln't have any help and must do it all by yourself
pause;
goto exit

:thanks
echo Thanks for playing my game :-D
echo Follow me on Gamejolt and try my other games to
pause;
goto exit

:exit