Sonic Pocket Adventure

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Title Screen

Sonic Pocket Adventure

Developers: Sonic Team, Dimps
Publishers: Sega, SNK
Platform: Neo Geo Pocket Color
Released in JP: January 11, 2000
Released in US: November 30, 1999
Released in EU: December 3, 1999


DebugIcon.png This game has debugging material.
LevelSelectIcon.png This game has a hidden level select.


Sonic Pocket Adventure is basically Sonic Unadvanced. This game marks the first time Sonic appeared on a third-party console, which is interesting considering Sega was still producing the Dreamcast at the time.

Contents

Debug Mode

SPA DebugMenu.png

Change byte 0x1F of the ROM to 0xFF in a hex editor to enable Developer Mode. (This is done automatically in some ancient emulators such as R.A.P.E. and NeoPocott, for some stupid reason.) When the SEGA screen is displayed, press the Option button to jump to the main debug menu.

An interesting function of the debug mode is that it allows the player to switch between Sonic and Tails by pressing the B button. It is also possible to trigger a free-movement mode by pressing A+B simultaneously.

Beginning

SPA BeginMenu.png

This is pretty straightforward. Simply pick the level with which you wish to start the game, as though it were any other level select screen.

The "Test" levels are just clones of Neo South Island, which will crash the emulator when selected.

Go To Room

This will take the player to the puzzle and option screen.

Direction

This will take the player to the ending scenes.

Sound Test

Simply opens up the Sound Test.

Debug Option

SPA DebugOpt.png

This menu is a bit more difficult to understand; the following explains the options' use in detail:

  • DEBUG DISP - Toggles the display of X/Y coords of the player in the HUD.
  • ATK DISP - Toggles the display of hitboxes around destroyable objects (Enemies, Monitors, etc).
  • BDY DISP - Toggles the display of hitboxes around the player.
  • MUTEKI - Toggles invulnerability for the player (can't be hurt).
  • ALL CLEAR - Toggles a full savegame.
(Source: Sonic Retro)