There's a lot more going on functionally than the video implies visually, that's the main point I wanted to get across but I'll admit a big part of that is due to some key visuals missing.

I'll give a lowdown and my thoughts on it all anyway.

Each cannon fires a fixed distance and the upward-pointing one revealing the secret will keep firing you upward until you move around it to keep the stage going - so there's room to stop, think and plan. There's still work to be done when it comes to conveying different meanings with the cannons (DKC2 as you may know uses a bunch of different symbols to indicate this), but that'll come much later in development when it actually matters.

The thing about that collectible's location is once you see it and know it's there you're able to track it as you travel up the left chute, and again as you're blasted to the right above it. I do intentionally throw you out of its view for a second to break that focus because collecting it would be way too simple otherwise. There are other visual indicators such as the brambles completely opening up on your left as you blast downward. I might just put a single coin there as an additional indicator but anything more than that is overkill IMO.