Super Mario Bros. 2: Bunny-Bunny Panic Nintendo Entertainment System

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Welcome to Bunny-Bunny Panic!

This 15-level hack uses Kaizo level design to create a fun but challenging world that explores a lot of what this game has to offer. This game was made when the creator was not experienced with SMB2 and is aimed to be a fair, but challenging, hack for brand-new players, while still providing fresh things for seasoned SMB2 vets.

In addition to being Super Mario Bros 2 Kaizo, this hack also features:

- Brand-new pause info screens, courtesy of CircleFriendo, that provide helpful tips in each new sub-area!
- Character-limited levels tailored to each of the four SMB2 characters!
- A special alternate Challenge Mode patch where lives/continues matter (but have been tweaked to be more fair to the challenge of the game)!

Special thanks to everyone who made this hack possible in the readme :) This is the creator's first SMB2 hack, but likely will not be their last!

Welcome to Bunny-Bunny Panic!!

Pt 1: Patching the ROM
Pt 2: Playing Notes
Pt 3: Special Thanks

--- Pt 1: Patching the ROM ---

There are two BPS files in the ZIP file:

- The regular patch has unlimited lives. Continues do not matter, and you receive a checkpoint at every new door or screen entry, but not for jar entries. Intended for first play :)
- Challenge Mode has limited lives (start with 4 extra lives). Continues matter (you have 6), and when you continue, you will start again at the start of the current level you're on. When you run out, you game over and must restart the game. You receive a checkpoint at every new door or screen entry, but not for jar entries. NOT intended for first play :)

Open your file patcher. You can use Floating IPS, but I recommend this online one since it will let you view the checksums of your ROM:
https://www.marcrobledo.com/RomPatcher.js/

NOTE: You MUST patch Bunny-Bunny Panic to a SMB2 USA (PRG0) ROM. The patch can be applied to other copies of SMB2-USA, but it will not load levels right and will likely glitch. The PRG0 rom is also the same one that was used in GlitchCat7's "Return to Subcon," so if you have successfully patched that game, you can also use it for this hack.

Upload SMB2-USA (PRG0) to marcrobledo.com, and it should return the following checksums:

CRC32: 7d3f6f3d
MD5: 71576d8339bd63198fcfc51a92016d58
SHA-1: 7df0f595b074f587c6a1d8f47e031f045d540dae

Do not check the 'remove header' box. Upload the BPS file as "Patch File", and then click "Apply Patch" to download a patched version of your ROM.

--- Pt 2: Playing Notes ---

- This hack is a 15-level Kaizo adventure, with a heavy emphasis on platforming and exploring the themes of SMB2.
- This hack was designed when I didn't know much about SMB2, so it is intended to be doable by players with limited experience in SMB2.
- Thanks to CircleFriendo, each unique area (ex: 1-1-1, 1-1-2, etc) has information on the pause screen! This tech was developed as we were making Bunny-Bunny Panic, meaning that this is the first ever hack to use this :)
- The hack takes a lot of inspiration from GlitchCat7's "Return to Subcon" and carries over its philosophy regarding damage. Most segments in this game are designed to allow you to damage-boost through one obstacle, and the checkpoints are generous.
- There are a few jars throughout the game that can warp you to the next world if you're in subspace!
- My final dev time for Bunny-Bunny Panic Challenge Mode was 52:00. Let me know if you beat that time :)

--- Pt 3: Special Thanks ---

- CircleFriendo, both for playtesting and developing every cool patch and piece of ASM for this hack. Thank you so much, this hack wouldn't be nearly what it is without your help.
- The SMB2 hacking discord, for providing motivation and help when I was about to give up on development. This discord has grown a lot in the past couple of months and has all kinds of fun projects, so if you're interested in developing your own stuff, feel free to join! https://discord.gg/fFdUmxMB
- princessbunbun_ for being an amazing wife and source of inspiration. I hope your fourth hack is the best one yet and I hope you like your new floaty power in this one :3 I love you!
- dtothefourth, for making SMB2Edit such an easy-to-use program. Thank you for this as well as everything else you do for the Mario community!
- GlitchCat7, for being the reason I checked out SMB2 in the first place. Your energy for the game helped me see how cool it actually is, and I can't wait for Subcon 2 :)
- my playtesters: CircleFriendo, redfeatherz, and Amethyst_Rocks. Thank you all so much for your help on this project and helping me see what needed to be tuned up before release. I am always eternally grateful :)

Database match: Super Mario Bros. 2 (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: 7DF0F595B074F587C6A1D8F47E031F045D540DAE
File CRC32: 7D3F6F3D
ROM SHA-1: 43AC7C7AAF1846EAD7B544302BB9131E4964FD32
ROM CRC32: 57AC67AF
Time to Beat
Main Story 2h 59m
Main + Extras 3h 1m
Speedrun Avg 0h 18m
Release Date
Jul 9, 2024
2 months ago
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