If you'd like to support our preservation efforts (and this wasn't cheap), please consider donating or supporting us on Patreon. Thank you!
Sonic the Hedgehog Pocket Adventure
Sonic the Hedgehog Pocket Adventure |
---|
Developers: Sonic Team
![]() |
Sonic Pocket Adventure is basically Sonic Unadvanced. This game marks the second time Sonic appeared on a third-party console, which is interesting considering Sega was still producing the Dreamcast at the time.
Contents
Debug Mode
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 "Rather a Pokemon Emulator?" 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. Pausing the game no longer causes the Pause banner to appear and it is possible to trigger a free-movement mode by pressing A+B simultaneously.
Beginning
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.
The Zone names are largely accurate to the final game; Neo South Island is shortened to "South Island" for space reasons, Aquatic Relix is spelled "Aquatic Relics", and Aerobase is spaced as "Aero Base".
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
Opens up a simple sound test, clearly more developer-facing than the fancy animated sound test players can unlock on the Game Options screen.
Debug Option
This menu is a bit more difficult to understand; the following explains the options' use in detail:
|
Regional Differences
To do: Is this everything the region changes? The text is all in English regardless. |
Sonic Pocket Adventure uses a single multi-region ROM but varies some details based on the console region.
Photo Pieces
Every Zone in the game features a number of hidden Photo Pieces which can be arranged into character artwork in the game's Puzzle Room. Oddly, the "Tails"/Miles naming seems to be inverted compared to what would generally be expected.
Japan | USA |
---|---|
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
Time Attack Name
When first entering the "Time Attack" mode, once must beforehand enter a name which will then be saved whenever a new time record is reached in the game. On the Japanese console, you can use katakana and hiragana in addition to alphabetic characters. On the International system, it's only the latter (obviously).
Cleanup > To do
Games > Games by content > Games with debugging functions
Games > Games by content > Games with hidden level selects
Games > Games by content > Games with hidden sound tests
Games > Games by content > Games with regional differences
Games > Games by developer > Games developed by Sega > Games developed by Sonic Team
Games > Games by platform > Neo Geo Pocket games > Neo Geo Pocket Color games
Games > Games by publisher > Games published by SNK Playmore > Games published by SNK
Games > Games by publisher > Games published by Sega
Games > Games by release date > Games released in 1999
Games > Games by series > Sonic the Hedgehog series