I got all the info

http://www.freewebs.com/insectduel/AdvSMB1.htm

Although, the page is Buggy when I move to Google but I never actally view their source anyway.

CTRL+F Mario's TSA's

I didn't find it in the thinger, but I'm looking again. Is there a similar way to free up the bottom half of Princess' dress, as well as the Fire Flower and the Starman? It'd be a great help to me.

The tile for small mario is at $6EE3: 3A 47 4F 4F
The lower tile for big mario begins at $6EF3: 4A 4A 4B 4B

Once you have your new, non-mirrored stance graphics in place, you'll notice one side is still flipped the opposite way.  The easy fix for this is to just flip the tiles which are placed on that side

You can clear some room in the sprite tiles easily since a lot of mario's sprites are repeats, like his feet are the same for one frame of running and jumping, and his hat is the same in many frames. 

Btw to find more tiles just load up YY-CHR and get the number of the tile in the "Bank" field.  Sprite tiles are arranged left to right, top to bottom, while background tiles are arranged top to bottom, left to right.   

Sprites:
1 2
3 4

Background
1 3
2 4

the power up mushroom and goombas aren't mirrored...

gooba: 67a4h: 70 71 72 73
power up mushroom: 66ceh: 76 77 78 79  (1up mushroom is a line below, same tile #s)

fireflower: 66d2: d6 d6 d9 d9
starman: 66d6: 8d 8d  e4 e4
princess: 67eah: 7a 7b da db d8 d8


hell, here's all of the enemy graphics, starting at 674b  (taken from the smb disassembly)

EnemyGraphicsTable:
      .db $fc, $fc, $aa, $ab, $ac, $ad  ;buzzy beetle frame 1
      .db $fc, $fc, $ae, $af, $b0, $b1  ;             frame 2
      .db $fc, $a5, $a6, $a7, $a8, $a9  ;koopa troopa frame 1
      .db $fc, $a0, $a1, $a2, $a3, $a4  ;             frame 2
      .db $69, $a5, $6a, $a7, $a8, $a9  ;koopa paratroopa frame 1
      .db $6b, $a0, $6c, $a2, $a3, $a4  ;                 frame 2
      .db $fc, $fc, $96, $97, $98, $99  ;spiny frame 1
      .db $fc, $fc, $9a, $9b, $9c, $9d  ;      frame 2
      .db $fc, $fc, $8f, $8e, $8e, $8f  ;spiny's egg frame 1
      .db $fc, $fc, $95, $94, $94, $95  ;            frame 2
      .db $fc, $fc, $dc, $dc, $df, $df  ;bloober frame 1
      .db $dc, $dc, $dd, $dd, $de, $de  ;        frame 2
      .db $fc, $fc, $b2, $b3, $b4, $b5  ;cheep-cheep frame 1
      .db $fc, $fc, $b6, $b3, $b7, $b5  ;            frame 2
      .db $fc, $fc, $70, $71, $72, $73  ;goomba
      .db $fc, $fc, $6e, $6e, $6f, $6f  ;koopa shell frame 1 (upside-down)
      .db $fc, $fc, $6d, $6d, $6f, $6f  ;            frame 2
      .db $fc, $fc, $6f, $6f, $6e, $6e  ;koopa shell frame 1 (rightsideup)
      .db $fc, $fc, $6f, $6f, $6d, $6d  ;            frame 2
      .db $fc, $fc, $f4, $f4, $f5, $f5  ;buzzy beetle shell frame 1 (rightsideup)
      .db $fc, $fc, $f4, $f4, $f5, $f5  ;                   frame 2
      .db $fc, $fc, $f5, $f5, $f4, $f4  ;buzzy beetle shell frame 1 (upside-down)
      .db $fc, $fc, $f5, $f5, $f4, $f4  ;                   frame 2
      .db $fc, $fc, $fc, $fc, $ef, $ef  ;defeated goomba
      .db $b9, $b8, $bb, $ba, $bc, $bc  ;lakitu frame 1
      .db $fc, $fc, $bd, $bd, $bc, $bc  ;       frame 2
      .db $7a, $7b, $da, $db, $d8, $d8  ;princess
      .db $cd, $cd, $ce, $ce, $cf, $cf  ;mushroom retainer
      .db $7d, $7c, $d1, $8c, $d3, $d2  ;hammer bro frame 1
      .db $7d, $7c, $89, $88, $8b, $8a  ;           frame 2
      .db $d5, $d4, $e3, $e2, $d3, $d2  ;           frame 3
      .db $d5, $d4, $e3, $e2, $8b, $8a  ;           frame 4
      .db $e5, $e5, $e6, $e6, $eb, $eb  ;piranha plant frame 1
      .db $ec, $ec, $ed, $ed, $ee, $ee  ;              frame 2
      .db $fc, $fc, $d0, $d0, $d7, $d7  ;podoboo
      .db $bf, $be, $c1, $c0, $c2, $fc  ;bowser front frame 1
      .db $c4, $c3, $c6, $c5, $c8, $c7  ;bowser rear frame 1
      .db $bf, $be, $ca, $c9, $c2, $fc  ;       front frame 2
      .db $c4, $c3, $c6, $c5, $cc, $cb  ;       rear frame 2
      .db $fc, $fc, $e8, $e7, $ea, $e9  ;bullet bill
      .db $f2, $f2, $f3, $f3, $f2, $f2  ;jumpspring frame 1
      .db $f1, $f1, $f1, $f1, $fc, $fc  ;           frame 2
      .db $f0, $f0, $fc, $fc, $fc, $fc  ;           frame 3

no problem   the SMB disassembly is a pretty useful document even if you don't know asm cause a lot of the data is nicely labled

Uh, yeah. But you'll have to duplicate a reference for some other sprite to compensate (Since you're "stealing" one of its tiles).

Is that an excuse to ditch some monsters I hear?

Good by, Bullets. You suck as enemies.