You can find most of the highlights from Robby's tweet in this game. For example, the second clip from Robby's twitter highlights is at 1:09 left in the 1st (~28:00 on the video) and the announcers are very clear that it's Mboup. They even zoom on him maybe half a minute later and you see his face, which looks like Mboup to me. The "Mboup charging down the lane" clip is also in this game, timestamp ~1:39:45.

I can't find the corresponding game film for every highlight, but the ones I can all seem to be Mboup. He looks a little small in this particular game, but I think that's because most of his teammates are about his height or taller: https://nbaacademy.nba.com/location/africa/