How to get all kremkoins in Donkey Kong Country 2, through a cheat:
Enter the cabin with the map and the life balloon. Leave without touching anything.
Collect the banana bunch over the pirate crocodile. Go back to the cabin, now pick the life.
Repeat the above. You’ll see a kremkoin over the map. Pick it and you got 75 kremkoins.
In no moment you can touch the two lone bananas close to the entrance of the cabin.
…it has been decades since I played this game, and I almost never used the cheat above (it’s less fun than finding all bonus stages). Why do I still remember this?