After a year in junior college, Allen transferred to Louisiana of the Sun Belt Conference. There, Allen led the Ragin Cajuns to two appearances in the NCAA tournament in both 1992 and 1994.
In his final year on the team, he averaged 22.7 points per game and was conference Player of the Year. He is still the only men's player in school history with that distinction and he is also currently eighth on the all-time scoring list at Louisiana.