Super Mario Bros.: Super Mario Bros.: Altered Edition

This hack changes some stuff in the game. It fixes a bug, some oddities, makes a gameplay change, changes a few graphics and adds animation to some things.

It'll expand the ROM to 160 KB and change the mapper to 1 (MMC1) as it makes use of an animation patch.

Read the readme for the full list of changes made to the game and known bugs.

About:
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This hack does the following changes to the game:

* Adds sound effects to the title screen demo.
* When Fire Mario takes damage, he turns back to Super Mario instead of Small Mario.
* Edits the ending text to clarify how to select worlds for hard mode (and changes "we" to "I").
* Fixes lives display when having 10 or more lives.
* Fixes the Spiny egg behavior.
* Reduces the amount of hammers Bowser throws, making it easier to dodge them when jumping over him.
* Changes the exclamation point graphic's height to be consistent with the other characters.
* Flips Bowser's fire to the correct direction.
* Adds a block above underwater exit pipes, preventing Mario from clipping there while big or with flower and getting stuck there until time runs out.
* Modifies sprite tile FF to not be partially visible behind the status bar's coin icon.
* Changes the castle at the start of 5-1 to the large one.
* Adds animations to ? blocks, coins, brick blocks, water/lava, castle flag and podoboo.
* Adds an own ground block graphic to underground levels. The used graphic is an unused one from Lost Levels.
* Changes Peach's sprite to the Lost Levels one.
* Changes starting lives to 5.
* Changes Small Mario's jump sound to be the same as Big Mario's.
* Fills the outline of the cloud/bush.
* Allows you to change direction in midair, as of 1.0.1.

Changelog:
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Version 1.0.1 (13/09/2021):
* Added ability to change direction while midair.

Known bugs:
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* Game Over music is removed. This is caused by the powerdown patch.
* The Spiny egg behavior fix also adds a Spiny near the start of 4-1 and 6-1 as a side effect.

Credits:
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* Chacky (Animation patch)
* Eden GT (Demo with Sounds patch)
* GoldS (Spiny Egg Fix patch)
* LeanneTM (Animated flag sprites)
* LooneyDude (Animated coin sprites)
* sjk-e351 (adjust_remain patch)
* SpiderDave (Change Direction in Midair patch, Change Bowser Hammer Rate hex offset)
* w7n (Fire Mario becomes Super Mario when injured patch)

Database match: Super Mario Bros. (World)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: EA343F4E445A9050D4B4FBAC2C77D0693B1D0922
File CRC32: 3337EC46
ROM SHA-1: FACEE9C577A5262DBE33AC4930BB0B58C8C037F7
ROM CRC32: D445F698