Game challenges you like to impose on yourself

[Kriven]

Collect everything in DK64. Everything. Even the stuff not required to get 101%. This includes every banana and Banana Coin.

I did it. Once.

There's a 101st banana for Diddy Kong in the level with the coal mine if you glitch through a certain location and get outside of the map. To my knowledge it hasn't been recorded on video, but it's something my friend and I used to do quite frequently as kids. It actually counts towards your total.