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Sonic X

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Title Screen

Sonic X

Developer: Torus Games
Publisher: LeapFrog Enterprises
Platform: Leapster
Released in US: May 5, 2005


AreasIcon.png This game has unused areas.
GraphicsIcon.png This game has unused graphics.
MovieIcon.png This game has unused cinematics.
DebugIcon.png This game has debugging material.


The first of two licensed Sonic titles for LeapFrog systems (the second being Sonic the Hedgehog on the Didj), Sonic X is pretty much a reskin of fellow Leapster game Numbers on the Run: Counting on Zero. Sonic X itself would later be reskinned as Go Diego Go!: Animal Rescuer.

This is one of those games that not even the Sonic Twitter page will dare to mention.

You're too good, Sonic.

Hmmm...
To do:
A lot.
  • Figure out how the music and voice clips are stored and see if there are any unused music and voice clips.
  • Figure out how the level maps are stored and see if there are any unused level maps.
  • Figure out where the sprite mappings are and how they work.

Unused Graphics

Hmmm...
To do:
  • Rip the rest of the sprites. (The graphics are stored in 4BPP GBA format. The graphics start at 0x117074 and the palettes start at 0x114B0C.)
  • There's likely more unused graphics than just the leftover sprites.
  • Find out where the mapping data for the game's sprites are located.
  • When said mapping data is found, re-rip the sprite of Zero shown below.

Zero, my hero

Scattered throughout the ROM is a metric ton of leftover graphics from Counting on Zero. Which is somewhat of a given considering the fact that this game is a reskin of it.

Placeholder Credits

Gotta appreciate the skills of CREDITS10!

22.swf is an unused and very unfinished credits sequence, using placeholder text rather than actual credits. The font is in Arial, Since the font wasn’t set to one of the custom fonts in the game itself.

Unused Debug Mode

Create an account with the name .SONSTER.

  • B + Up - Free fly/noclip mode.
  • Hint (the "?" button) - Stop flying/enable collision.
  • B + Left - Display coordinates on bottom-right side of screen.
  • B + Down - Access the cheat menu/hidden level select.

Notably, you can play as Zero via Debug Mode, though the sprites are a bit buggy.

Unused Cheat Menu

Another Counting on Zero leftover, though it still works.

SonicX Unused Cheat Menu.png

Unused Levels

What looks to be a test level using graphics from Outlandish Outer Spacy Zone. Unfortunately, the camera does not move.

Seemingly another test level, this one with Angel Island sprites.