SONIC IN FLICKY

ROM hack created by Techokami
March 8th, 2021

-=STORY=-
The nefarious Dr. Robotnik has zapped Sonic the Hedgehog with a super shrinking ray! But before Sonic could reach the mustached menace, his friend Flicky called for help! Her buddies, the Chirps, are stuck in various buildings, and need to be escorted to safety. Sonic, without hesitation, offered to help Flicky's friends. And so Sonic begins the rescue mission...

-=BACKGROUND=-
Once upon a time, on the Spriter's Resource, Sonicfan32 posted this: https://www.spriters-resource.com/custom_edited/sonicthehedgehogcustoms/sheet/116526/
A user by the name of ThomasTheHedgehog888 asked how to put it into the game without disassembling it. Recently, while revisiting this sheet and its comments, my ADHD went "CHALLENGE ACCEPTED" and I started tearing into the game itself. After mapping out the locations of the compressed graphics archives, the pointers to said archives, and finding more than enough empty space to relocate archives to, I actually went and implemented the sprites into the game proper. I also implemented the suggestion from WilliamStef and replaced the woman in the window with a Tails cameo. After about a total of 6 hours of work, the hack was completed. I was not able to edit the in-game credits, as there is not enough space to insert new text and I cannot locate the pointer used for the text. However I did leave a credits text block at 0x04200.

-=CREDITS=-
Hacking work: Techokami
Sonic Sprites: Sonicfan32

-=TOOLS USED=-
BizHawk 2.6.1
Gens v2.12a KMod 0.7c
GSPalConv
YY-CHR 0.99 Beta
Hex Workshop v6.8
Esrael's FixCheckSum tool
Nemesis tool suite

-=ADDITIONAL NOTES=-
Here's some hacking notes for Flicky.
0x0051A: SEGA Logo (Nemesis compressed)
0x02372: Unused font (1bpp)
0x10106: Level tile archive pointer
0x101CA: "EXIT" archive pointer
0x10118: Sprite archive pointer
0x101B8: Sprite 2 archive pointer
0x11FBE: Title Logo archive pointer
0x120B8: Title text (ASCII)
0x1339C: Credits text (ASCII)
0x16E58: Level tiles (Nemesis compressed)
0x185FC: Font (1bpp)
0x18754: "EXIT" sign tiles (Nemesis compressed)
0x187D4: Sprites for most objects (Nemesis compressed)
0x1993E: Sprites for scoring, Iggy, and bonus woman (Nemesis compressed)
0x19EEE: Title Screen logo tiles (Nemesis compressed)