Super Mario Bros. 2: Super Mario Bros. 2 - Standard Mario Patch

This is a patch for the USA version of Super Mario Bros. 2, to make the game more like the other Mario games. For instance, the cherries have been replaced with coins, and collecting 100 of them will give you an extra life. The turtle shells reverse direction when colliding with a wall, rather than disappearing. The readme contains all of the changes that have been made to this game.

PLATFORM: Nintendo Entertainment System
ROM: Super Mario Bros. 2 (USA)
HACK TITLE: Super Mario Bros. 2 - Standard Mario Patch
AUTHOR: RetroRain
VERSION: 1.2
RELEASE DATE: 4/22/17

This is a patch for the USA version of Super Mario Bros. 2, that makes the game more like the other Mario games. Here is a list of all of the changes:

- The cherries are now regular coins.
- If you collect 100 regular coins, you get a 1-UP.
- The regular and bonus coins now have counters on the Pause screen.
- The main characters' palettes have been updated.
- Health meter, subspace mushroom, 1-UP mushroom, and turtle shell graphics have been updated.
- The turtle shell now has a spin animation.
- In order to obtain the mushroom in subspace, now all you have to do is walk into it. It cannot be obtained from below though.
- The skipped animation frame that existed in the original game has been fixed.
- When you pick up 5 big vegetables, the fifth one will reveal a star. The stopwatch is no longer accessible.
- The turtle shell now bounces back after colliding with a wall.
- The "EXTRA LIFE..." text on the pause and bonus chance screens has been updated to "EXTRA LIVES".

NOTES:

1. I was able to make the turtle shell hurt the player on contact when it was in motion, however this was removed for two reasons:

1A. The main reason, is that the bombs that you pick up, drop, and wait a few seconds for them to explode, would hurt you if you touched them before detonation. Whether it was walking into them, jumping on top of them, or trying to catch them. This was definitely a problem for the boss fights with Mouser. Simply trying to catch a bomb would hurt the player.

1B. You could no longer ride the shell, or try to pick it up again. Once the shell was in motion, aside from being able to catch it from below if it was above you, any contact with the shell would hurt the player.

The turtle shell and bombs share the same collision routine. And I tried many different methods to try to separate the shell and the bomb, but it has proved very difficult to do, and as not to have any bugs and imbalance in the game, I decided it was best to just leave this out.

2. You can't obtain a mushroom in subspace from below. I managed to get this to work, but it caused the game to crash when the player had contact with the enemies. There was a conflict with the collision routine, that again, was difficult to resolve. And since it's not often that you will obtain a mushroom from below, and not to have any bugs in the game, I decided to leave it out.

The titlescreen hasn't been touched. You can use this as a base for your hacks if you wish. Just give credit please if you do.

Enjoy! :)

acmlm.kafuka.org

Filename Super Mario Bros. 2 (USA)
File MD5 71576D8339BD63198FCFC51A92016D58
File SHA-1 7DF0F595B074F587C6A1D8F47E031F045D540DAE
File CRC32 7D3F6F3D
ROM MD5 CCD25B4FA7ACDDEF38D75212AE0E5432
ROM SHA-1 43AC7C7AAF1846EAD7B544302BB9131E4964FD32
ROM CRC32 57AC67AF