What timed levels on the original Wolfenstein 3D require the largest amounts of additional time to fully explore, versus the time required to just complete the level as quickly as possible? If you are confused as to what I'm asking, here's how it works:

1. Consider every level that gives a completion time when you finish. That is, everything except Floor 9 and Floor 10's - which makes 48 levels in total, every Floor 1-8. Except exclude E2L8 because of the Aardwolf maze, so really 47 levels in total.

2. Determine about how long it takes you to finish the level as quickly as possible (except don't use any secret shortcuts), and then about how long it takes to get 100% ratios. This can be through replaying both ways, but it doesn't have to be - if you're confident feel free to let your memory serve you.

3. Take the difference between the two times. The levels that give you largest and smallest differences are the answers to the question. Note that the proportion between the two completion times is irrelevant (otherwise E2L7 would obviously be the winner here in the large category) - what matters is strictly the difference between the times and not the ratios.

4. A top three, top five, etc. on both ends of the spectrum is even better than a simple maximum/minimum, so feel free to list multiple that come to mind.

1. Consider every level that gives a completion time when you finish. That is, everything except Floor 9 and Floor 10's - which makes 48 levels in total, every Floor 1-8. Except exclude E2L8 because of the Aardwolf maze, so really 47 levels in total.

2. Determine about how long it takes you to finish the level as quickly as possible (except don't use any secret shortcuts), and then about how long it takes to get 100% ratios. This can be through replaying both ways, but it doesn't have to be - if you're confident feel free to let your memory serve you.

3. Take the difference between the two times. The levels that give you largest and smallest differences are the answers to the question. Note that the proportion between the two completion times is irrelevant (otherwise E2L7 would obviously be the winner here in the large category) - what matters is strictly the difference between the times and not the ratios.

4. A top three, top five, etc. on both ends of the spectrum is even better than a simple maximum/minimum, so feel free to list multiple that come to mind.