For anyone who doesn't know, these are the 5 awards in this game:
- Mario Award, for completing 8-4 in the Original 1985 mode
- Bowser Award, for completing 8*4 in the Original 1985 mode
- Luigi Award, for completing 8-4 in the Super Mario Bros. for Super Players mode (SMB2j remake with the wind removed and possibly other changes), also shows the credits
- Peach Award, for obtaining all 96 medals in Challenge mode
- Toad Award, for filling up the score bar in Challenge mode
You Vs. Boo mode doesn't give an award, but Boo matches your best time after you win once on a particular level, and changes color based on that time (white-->green-->pink-->black). So unlocking black Boo in all 8 levels could be considered completing it.
There are various other photo album pictures, such as one for defeating each type of enemy (all 8 fake Bowsers count separately and have to be killed with fireballs), but it's impossible to obtain two of them without linking (play a 2-player race and trade high scores with someone).
I'm not sure whether all 5 awards would really be worth watching over Peach+Toad (or Peach+Toad+ 8 black Boos), considering the rest would just be SMB1 warpless, SMB1 hard with warps, and SMB2j with warps, on a smaller screen size.
Regarding the idea of maximum possible score, I'd like to see that myself, but there is an issue with that-- repeatedly kicking a Koopa/Buzzy shell against a wall (kicking, stomping, kicking again, and so on) is worth more points than what's lost from the timer bonus, and unlike the Koopa-stairs trick, I don't think it will destroy the shell. So quite a lot of the levels would end with minimal time (probably 6 time units left for the fireworks), resulting in a rather boring video, unless some arbitrary restriction is placed on number of times each shell can be kicked or something like that.
YouTube user
PersonOnEarth has uploaded some videos of TAS high scores for the
first 7 castles and
6-3 (which don't contain any shells), though, along with TASes of the You Vs. Boo levels.