Notes:New Super Mario Bros./Unused Sprite and Actor Settings

=New=

=Old=

Faster Enemies
Two enemies have faster variations.
 * Spiny. It is THING 37 with THING.
 * Boo. It is THING 39 with THING.

Non-functional THINGS
There are many THINGS that crash the game or have no visible effect when spawned and there is no way to tell what code they have (if any) because they have yet to be dissembled fully.
 * An unused variation of the Chain Chomp exists that causes the game to freeze and the background to become glitchy when approached. It is THING 42 with THING.
 * THINGS 0 to 9 are THINGED to the player THING. This is used by the game to spawn Mario and Luigi and is useless as a THING.

Blue Koopa Shell
An unused variation of the Blue Koopa Shell exists that can only be worn by ground-pounding on it. It can be thrown and used to hit enemies and bricks like other shells. Unlike the used powerup, it does not sparkle. It is THING 149 with THING.

Unused Line-guide usage

 * The rectangle, triangle and square platforms can follows lines. The variation that spins 80° every few seconds will move and spin along the line every few seconds; the variation that spins constantly will move along the line constantly and the variation that spins, if the player is standing on it, will move when the player stands on it. The direction of movement depends on the direction of the rotation (clockwise = right, anticlockwise = left). They are THING 82, 86 or 236 with THING.
 * The Moving Mushroom can follow line guides, it looks strange because it is riding the line rather than following it from the middle. It is THING 174 with THING.

Weight Controlled Platform Variations
Unused variations of the Weight Controlled Platform exist. They are THING 187 with THING:
 * Fades away after some time..
 * Starts moving by itself..
 * Can only move left and right..
 * Moves down instead of up.

Expandable Block Variation
An unused variation of the Expandable Block exists. After being hit four times, each piece turns into a used block. It is THING 289 with THING.

Flying ? Block Variation
An unused variation of the Flying ? Block exists that when hit spawns Mario climbing up a vine. The vine spawns on its own without Mario if the player hits it while playing as Luigi. The spawned is Mario quite glitchy so it is unlikely that it would have been used in this state, if at all. It is THING 290 with THING.

Invisible Podoboo
This Podoboo is invisible but when it touches the player, it becomes visible for a few seconds. It moves back and forth slowly across the distance of eight blocks, stopping at each end for a second. The THING, can be linked with Pointing Hands. It is in the Ghost House THING. It is thing 266.

Balloon Boo Variation
A Balloon Boo Variation that does not inhale or exale air, and moves and sounds like a boo.

Blockhopper Variation
Purely a visual difference: it's head is a Brick Block instead of a ? Block.