@echo off

ECHO should print Four Three Two One Zero 3 2 1 each on its own line

SET LVL=4

:loop

errlvl %LVL%

IF ERRORLEVEL 4 GOTO FOUR

IF ERRORLEVEL 3 GOTO THREE

IF ERRORLEVEL 2 GOTO TWO

IF ERRORLEVEL 1 GOTO ONE

echo Zero

GOTO END

:FOUR

echo Four

SET LVL=3

GOTO loop

:THREE

echo Three

SET LVL=2

GOTO loop

:TWO

echo Two

SET LVL=1

GOTO loop

:ONE

echo One

SET LVL=0

GOTO loop

:END

errlvl 3

ECHO %ERRORLEVEL%

errlvl 2

ECHO %ERRORLEVEL%

errlvl 1

ECHO %ERRORLEVEL%

echo Done