Thats what you call a debut!

From STV:

Remember the name: 17yr old Joel Pohjanpalo scores perfect hat-trick in three mins on his debut
In his second league game and first ever start in the Finnish Premier League (Veikkausliiga), 17 year old wonderkid Joel Pohjanpalo scores a perfect, natural hat-trick (right foot, left foot, header) in an astonishing 2 minutes and 42 seconds in HJK's first league fixture of the season

(Video half way down the link...)

http://sport.stv.tv/football/scottish-premier/celtic/304176-football-talk-lennon-ban-tupe-fiasco-wonderkids-perfect-hat-trick-poty-and-el-clasico-preview/

btw - Watch the video at the bottom of the page for the most blatant red card ever - although no truth that 60% of the SPL ref's would let him off with a warning...