Unfinished engineering

here are some unfinished discoveries

Objects

question block

shoe payload -> bank 0, id 0x43 p-wing -> bank 0, id 0x55 coin snake -> bank 0, id 0x47

brick with coin cache

0 y x 0x1a

corner terrain piece

0x11 y x 0x1 -- seems id 1 is terrain related, the 0x11 value seems like it can be anything and not make a difference.

But this was also a corner terrain piece 0x10 y x 0 ... hmmm....

0 y x 4 --- upper left corner terrain, ie

 ____
/   |
|   |
|   |
|___|

0 y x 0xb -- lower right terrain, but with a blue tint ??? 0 y x 0xa -- lower right terrain, no tint 0 y x 0x8 -- lower left terrain, blue tint 0 y x 0x7 -- lower left terrain, no tint 0 y x 0x5 -- upper right terrain, blue tint 0 y x 0x4 -- upper right terrain, no tint 0 y x 0x3 -- upper right terrain, has a bit of a dip? 0 y x 0x2 -- upper left terrain, blue tint 0 y x 0x1 -- upper left terrain, no tint, bit of a dip? 0 y x 0x0 -- upper left terrain, no tint

pink triangle "run on walls"

0x16 y x 0x52 -- this is one of those pink triangles that lets mario run on walls, it is the upper right corner variant, ie

....
 ...
  ..
   .

so far changing the initial 0x16 seems to make no difference

0 y x 0x53 -- upper left pink triangle, same with 0x52 0 y x 0x51 -- lower left pink triangle 0 y x 0x50 -- lower right pink triangle

music blocks

mushroom then fireflower -> bank 0, id 0x21 mushroom then leaf -> bank 0, id 0x22 starman -> bank 0, id 0x23

hidden blocks

invisible then music block upon hit -> bank 0, id 0x20 invisible then 1up mushroom upon hit -> bank 0, id 0x1f invisible then coin upon hit -> bank 0, id 0x1e

bricks

p-block payload -> bank 0, id 0x1d climbing vine -> bank 0, d 0x1c

muncher

0 y x 0x15

single question blocks (not strips)

coin cache -> bank 0, id 0x14 single coin -> bank 0, id 0x13 starman -> bank 0, id 0x12 mushroom then leaf -> bank 0, id 0x11 mushroom then fireflower -> bank 0, id 0x10

doors

0 y x 0xf -- regular door 0 y x 0x46 -- a metal door? has "knobs" on it

completely invisible block

0 y x 0x9 -- it doesn't reveal anything upon being hit, seems to just be terrain 0 y x 0x6 -- same

some kind of terrain?

0 y x 0x4f looks like a small piece of a building?

camera

0 y x 0x4e -- creates a 16x16 (single tile) space that when mario goes through it, it pushes the camera up

Spikes

0 y x 0x4d -- big red balls with white spikes all around, I think they are normally in water

arrow signs

pointing left 0 y x 0x4c pointing right 0 y x 0x4b

errors

0 y x 0x4a -- completely wiped out the area in its vicinity, including Mario

static stalactite

0 y x 0x49 also 0x48