This is something small but interesting that I discovered some time ago, and have been meaning to mention...
In DKC3's lakeside/boardwalk levels, you sometimes encounter underwater gates which can be either swam over, or stood on. (see screenshot below)
If you team-throw either Kiddy or Dixie upwards, and guide them to land on the gate, they will hover instead of landing.
While this is happening, your control is limited to guiding the hovering Kong left and right; even pausing the game is disabled. To cancel this glitch, guide the hovering Kong far enough to the left or right that they are no longer above the gate - a slow process when Kiddy's concerned!
I'm not quite sure why this happens, but here's a video to show it in action.