Donkey Kong 64 is excellent, with amazing personality, great music, and great playable characters, but the minigames are sometimes a little janky and you have to love the characters, music, levels and aesthetics if you’re gonna be happy with all the backtracking.
So @CleoTheWizard as a “before you play” tip for Donkey Kong 64, know that there are five playable characters and you can switch at “tag barrels” and basically every collectible, item and action in a level only works for the right character. This keeps you engaged with all characters and the different ways they move but plenty of people understandably dislike the backtracking that comes with it. Most of all remember that less than half the collectibles are required to beat the game so don’t backtrack too much unless you want to, and consider playing the latest version of the "change kongs anywhere " romhack which lets you change characters with a button instead of a trip back to a tag barrel, it’s a very very well done romhack now.
Can you share the full story of the projects that you could predict could fail using maths?