Like in the last game, Diddy can use his Barrel Jet to hover temporarily. The problem is that this seems rather pedestrian compared to Dixie, who can actually gain height and so outranges him both vertically and horizontally. Even underwater, Diddy's linear jet boost seems harder to use effectively than Dixie's consistent speed increase. And while his Kong Pow turns enemies into Red Balloons, after the first world I found myself having more then 90 lives all the time (the max being 99), and Dixie's Golden Hearts are much better for actually staying alive in the first place.
Does Diddy have any redeeming qualities whatsoever? Or is he just straight outclassed?