With the Bobcats (5-4) leading 82-79, Hall scored eight points in a 9-4 run over the final 1:48.
Gobeloglu scored 16 points with three of his four 3-pointers coming in the final 4:26. Danny Robison added 14 points and Colbert 12.
The Bobcats led by 12 before San Jose State took its first lead of the second half at 66-64 with 9:56 left.
Montana State beat the Spartans 81-69 on Nov. 20 when teams played on the Bobcats' home floor.