Finally getting around to hopefully giving the Original SMBZ a LS feat above Athletic Human. Cape Mario flings Bowser out of the race track at the end of episode 2.
Timing from the first frame of the wider shot of the track to when Bowser hits the camera takes 2 full seconds and an additional 6 frames. The remaster of the series runs at 60 fps, so this gives us a final timeframe of 2.1 seconds.
Comparing Bowser to Mario, who's 5'1", or 1.5494 meters
Mario = 1.5494 meters = 167.5 pixels
Bowser = 309 pixels = 2.85848059702 meters
Using this calculator
Bowser = 2.85848059702 meters = 18.2 pixels
Screen = 618 pixels
2atan(tan(35deg)*(18.2/618)) = 2.3626575417207 degrees = 69.31 meters
69.31/2.1 = 33.0047619048 meters/second
With Mario's height his arms would be 0.7747 meters long
Mario winds up for 133 frames, or 2.21 seconds
Acceleration = 33.0047619048/2.21 = 14.9342814 meters/second^2
Now for Bowser's weight, comparing him to a giant tortoise, which can be up to 4 feet and 700 pounds (1.2192 meters and 317.5146 kilograms)
2.85848059702/1.2192 = 2.34455429546
2.34455429546^3 = 12.8878622012 * 317.5146 = 4092.08441167 kilograms
4092.08441167 * 14.9342814 = 61,112.3401 newtons, 6,231.7244 Kilograms, Class 10
Much better than Athletic human. Mario was in his cape form when he did this, but the physical amp granted by most power-ups isn't so great that base forms don't at least somewhat scale (Also based on his showings against the Koopa Bros' special attack episode 6 base Mario is superior to his episode 4 (And by proxy, episode 2) cape form anyway)