i had to think about this one but i think i'd have to say something like teenage mutant ninja turtles on the nes's "rank" system, which i sorta detailed here
but it's full of bugs and doesn't work, and even if it did work it wouldn't change much.
summary:
- the game keeps track of points scored in a particular area.
- the game tracks how long you have been in that area.
- based on the above, it calculates a rank. higher scores = longer timer thresholds.
- the higher the timer is, the lower your rank. the higher your score, the longer it takes for your rank to go down.
- you can increase your rank by crossing a score threshold that increases the timer thresholds above your current timer.
- if your health is too low, your rank is lowered. but the code always considers you to have 0 health, because it checks the wrong value, so it lowers your rank by 2.
- even if it didn't, a rank of 4 (highest) is considered a rank of 0 (lowest).
- even if it worked properly, the rank system is unused in most of the game.
tmnt 1 on the nes is just a huge clusterfuck in general, tho
