Across two sessions on March 5 and March 9, 2013, Nick and I ran through Super Mario Bros 3. What was done differently this time is we wanted to rate the difficulty of each stage (1 easiest -> 10 hardest).

Overall the average diffulty on the 90 levels was 3.6 / 10. (I hope there are 90 levels total, i didn’t count).

Here are the summaries:

+---------------------------+------+------+
|                           | Nick | Tom  |
+---------------------------+------+------+
| avg diff w/ zeroes        | 2.37 | 1.23 |
| total diff points beaten  | 213  | 111  |
| levels beaten             | 54   | 36   |
| avg diff per level beaten | 3.94 | 3.08 |
+---------------------------+------+------+

Here are the full level logs:

+------+-----------+------------+--------------------------+
| name |   level   | difficulty |       notes/deaths       |
+------+-----------+------------+--------------------------+
| nick | 1-1       |          1 |                          |
| tom  | 1-2       |          1 |                          |
| nick | 1-4       |          2 | white mushroom           |
| tom  | 1-3       |          1 |                          |
| nick | fort      |          1 |                          |
| tom  | 1-5       |          1 |                          |
| nick | 1-6       |          1 |                          |
| tom  | airship   |          2 |                          |
| nick | 2-1       |          1 |                          |
| tom  | 2-2       |          1 |                          |
| nick | fort      |          1 |                          |
| tom  | 2-3       |          1 |                          |
| nick | sun       |          3 | nick 1, tom 1            |
| tom  | 2-4       |          1 |                          |
| nick | pyramid   |          2 |                          |
| tom  | 2-5       |          2 |                          |
| nick | airship   |          3 |                          |
| tom  | 3-1       |          2 |                          |
| nick | 3-2       |          2 |                          |
| nick | 3-3       |          3 | tom 1                    |
| tom  | fort      |          2 | tom 1, nick 1            |
| nick | 3-4       |          3 |                          |
| tom  | 3-5       |          2 |                          |
| nick | 3-6       |          2 |                          |
| tom  | 3-7       |          2 |                          |
| nick | 3-8       |          4 |                          |
| tom  | 3-9       |          3 |                          |
| nick | fort 2    |          3 |                          |
| tom  | airship   |          4 | tom 2, nick 2            |
| nick | 4-1       |          2 |                          |
| tom  | 4-2       |          2 |                          |
| nick | 4-3       |          3 | nick 1, tom 1            |
| tom  | fort      |          3 | tom 1                    |
| tom  | 4-4       |          2 |                          |
| nick | 4-5       |          3 |                          |
| tom  | 4-6       |          3 | nick 1                   |
| nick | 4-7       |          3 |                          |
| nick | airship   |          5 |                          |
| tom  | 5-1       |          3 |                          |
| nick | 5-2       |          3 |                          |
| tom  | fort      |          4 |                          |
| nick | 5-3       |          2 |                          |
| tom  | fort      |          3 |                          |
| nick | 5-4       |          3 |                          |
| tom  | 5-5       |          2 |                          |
| nick | 5-7       |          3 |                          |
| nick | 5-6       |          4 | tom 1                    |
| tom  | fort      |          3 |                          |
| nick | 5-8       |          4 |                          |
| nick | 5-9       |          5 | tom 3, nick 2            |
| nick | airship   |          5 | tom 2, nick 1            |
| tom  | 6-1       |          4 |                          |
| nick | 6-2       |          4 |                          |
| nick | 6-3       |          4 |                          |
| tom  | fort      |          5 | tom 1, nick 1            |
| tom  | 6-4       |          3 | nick 1                   |
| nick | 6-6       |          3 |                          |
| nick | 6-5       |          5 |                          |
| nick | 6-6       |          7 |                          |
| tom  | fort      |          4 |                          |
| nick | 6-8       |          4 |                          |
| nick | 6-9       |          4 | tom 1                    |
| nick | 6-10      |          4 | tom 1                    |
| tom  | fort      |          5 | tom 1, nick 1            |
| nick | airship   |          5 |                          |
| tom  | 7-1       |          3 |                          |
| nick | 7-2       |          4 |                          |
| nick | 7-3       |          4 | tom 2, nick 1            |
| tom  | 7-4       |          5 |                          |
| nick | 7-5       |          4 |                          |
| nick | fort      |          5 | tom 1                    |
| nick | 7-6       |          6 | tom 1                    |
| tom  | pirahna   |          7 | tom 3, nick 3 - (p-wing) |
| nick | 7-7       |          7 |                          |
| tom  | 7-9       |          5 |                          |
| nick | 7-8       |          6 |                          |
| nick | fort      |          6 | tom 1                    |
| nick | pirahna 2 |          5 | tom 1                    |
| tom  | airship   |          8 | tom 2, nick 2 - (p-wing) |
| nick | 8-tank    |          6 | tom 1, nick 1            |
| nick | 8-water   |          6 | tom 2, nick 1            |
| tom  | hand 1    |          3 |                          |
| nick | hand 2    |          3 |                          |
| tom  | hand 3    |          3 |                          |
| nick | 8-air     |          9 | nick 2, tom 2 - (p-wing) |
| nick | 8-1       |          6 | tom 1                    |
| nick | 8-2       |          5 | tom 1                    |
| nick | fort      |          8 | we both died lots        |
| tom  | tank      |          6 |                          |
| nick | bowser    |          6 | tom 1, nick 1            |
+------+-----------+------------+--------------------------+