Rubuta ci gaba don wannan sakin layi - Ulloa ya fara bugawa El Salvador wasa a watan Agusta 1987 wasan wasannin Pan American da Trinidad & Tobago kuma ya sami jimillar wasanni 31, inda ya zira kwallaye 8. Ya wakilci kasarsa a wasanni 11 na gasar cin kofin duniya na FIFA (wanda ya zura kwallaye shida) da kuma a gasar cin kofin kasashen duniya na UNCAF na 1991 da 1993.
s.