Williams, who rushed for 114 yards, scored on a 64-yard run in the second quarter, to give the Wildcats (4-1, 2-0 Mid-Eastern Athletic Conference) a 10-3 lead.
Two of the Williams-to-Robinson touchdowns - 70 yards and 6 yards - gave the Wildcats a 24-6 lead heading into the fourth quarter.
Early in the fourth, quarterback DeAndre Harris scored what would be the Bears' only offensive touchdown, his 1-yard run closing the gap to 24-13. After Robinson caught a 44-yard TD pass from Williams to make it 31-13, Morgan State's Manasseh Bailey recovered a block punt in the end zone for the final score.
Joshua Case carried 25 times for 124 yards and the Bears (0-5, 0-2) totaled 191 yards on the ground. Bethune-Cookman rushed for 274 yards.
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