All Games » Neo Geo Pocket » Sonic The Hedgehog: Pocket Adventure

Sonic The Hedgehog: Pocket Adventure
Console icon Neo Geo Pocket

Game icon

Developer

SNK, Sega

Publisher

SNK, Sega

Genre

2D Platforming

Released

November 30, 1999

Title screenshot
In-game screenshot
Title screenshot Ingame screenshot

Achievements

Authors: mprobinson (24), ColonD (13)
There are 37 achievements worth 530 (3,748) points.

  • Defeat Dr Eggman in Neo South Island

    1,858 (954) of 2,075 – 89.54%

    45.98% of players have earned the achievement in hardcore mode
    89.54% of players have earned the achievement in softcore mode

  • Defeat Dr Eggman in Secret Plant

    947 (555) of 2,075 – 45.64%

    26.75% of players have earned the achievement in hardcore mode
    45.64% of players have earned the achievement in softcore mode

  • Defeat Dr Eggman in Cosmic Casino

    710 (443) of 2,075 – 34.22%

    21.35% of players have earned the achievement in hardcore mode
    34.22% of players have earned the achievement in softcore mode
  • Knuckles

    (5) (8)

    Defeat Knuckles in Aquatic Relix

    612 (379) of 2,075 – 29.49%

    18.27% of players have earned the achievement in hardcore mode
    29.49% of players have earned the achievement in softcore mode
  • Silver Sonic

    (10) (19)

    Defeat Silver Sonic in Aerobase

    478 (298) of 2,075 – 23.04%

    14.36% of players have earned the achievement in hardcore mode
    23.04% of players have earned the achievement in softcore mode
  • Dr Robotnik

    (10) (21)

    Defeat Dr Robotnik in Gigantic Angel

    422 (269) of 2,075 – 20.34%

    12.96% of players have earned the achievement in hardcore mode
    20.34% of players have earned the achievement in softcore mode

  • Defeat Dr Eggman in Last Utopia

    422 (269) of 2,075 – 20.34%

    12.96% of players have earned the achievement in hardcore mode
    20.34% of players have earned the achievement in softcore mode
  • Sonic Star

    (25) (53)

    Defeat Dr Eggman Final in normal mode.

    416 (268) of 2,075 – 20.05%

    12.92% of players have earned the achievement in hardcore mode
    20.05% of players have earned the achievement in softcore mode
  • Emerald

    (10) (12)

    Collect your first Chaos Emerald (need to have no Chaos Emeralds beforehand)

    1,295 (648) of 2,075 – 62.41%

    31.23% of players have earned the achievement in hardcore mode
    62.41% of players have earned the achievement in softcore mode
  • Chaos Emerald

    (50) (369)

    Collect all Chaos Emeralds (unlocks in Chaotic Space).

    127 (61) of 2,075 – 6.12%

    2.94% of players have earned the achievement in hardcore mode
    6.12% of players have earned the achievement in softcore mode

  • Assemble an image of Sonic.

    59 (44) of 2,075 – 2.84%

    2.12% of players have earned the achievement in hardcore mode
    2.84% of players have earned the achievement in softcore mode

  • Assemble an image of Miles "Tails" Prower.

    54 (42) of 2,075 – 2.60%

    2.02% of players have earned the achievement in hardcore mode
    2.60% of players have earned the achievement in softcore mode

  • Assemble an image of Sonic and Miles "Tails" Prower.

    51 (40) of 2,075 – 2.46%

    1.93% of players have earned the achievement in hardcore mode
    2.46% of players have earned the achievement in softcore mode

  • Assemble an image of Knuckles.

    51 (40) of 2,075 – 2.46%

    1.93% of players have earned the achievement in hardcore mode
    2.46% of players have earned the achievement in softcore mode

  • Assemble an image of the Tornado.

    51 (39) of 2,075 – 2.46%

    1.88% of players have earned the achievement in hardcore mode
    2.46% of players have earned the achievement in softcore mode
  • E.G.G.M.A.N.

    (10) (113)

    Assemble an image of Dr. Robotnik.

    51 (39) of 2,075 – 2.46%

    1.88% of players have earned the achievement in hardcore mode
    2.46% of players have earned the achievement in softcore mode

  • Collect at least 150 rings in Neo South Island I

    366 (234) of 2,075 – 17.64%

    11.28% of players have earned the achievement in hardcore mode
    17.64% of players have earned the achievement in softcore mode

  • Collect at least 150 rings in Neo South Island II

    198 (123) of 2,075 – 9.54%

    5.93% of players have earned the achievement in hardcore mode
    9.54% of players have earned the achievement in softcore mode

  • Collect at least 150 rings in Secret Plant I

    342 (212) of 2,075 – 16.48%

    10.22% of players have earned the achievement in hardcore mode
    16.48% of players have earned the achievement in softcore mode

  • Collect at least 150 rings in Secret Plant II

    135 (89) of 2,075 – 6.51%

    4.29% of players have earned the achievement in hardcore mode
    6.51% of players have earned the achievement in softcore mode

  • Collect at least 150 rings in Cosmic Casino I

    142 (106) of 2,075 – 6.84%

    5.11% of players have earned the achievement in hardcore mode
    6.84% of players have earned the achievement in softcore mode

  • Collect at least 150 rings in Cosmic Casino II

    137 (100) of 2,075 – 6.60%

    4.82% of players have earned the achievement in hardcore mode
    6.60% of players have earned the achievement in softcore mode

  • Collect at least 150 rings in Aquatic Relix I

    91 (61) of 2,075 – 4.39%

    2.94% of players have earned the achievement in hardcore mode
    4.39% of players have earned the achievement in softcore mode

  • Collect at least 150 rings in Aquatic Relix II

    86 (55) of 2,075 – 4.14%

    2.65% of players have earned the achievement in hardcore mode
    4.14% of players have earned the achievement in softcore mode
  • Sky Chase

    (25) (218)

    Collect at least 100 rings in Sky Chase

    76 (52) of 2,075 – 3.66%

    2.51% of players have earned the achievement in hardcore mode
    3.66% of players have earned the achievement in softcore mode
  • Aerobase

    (25) (241)

    Collect at least 150 rings in Aerobase

    82 (49) of 2,075 – 3.95%

    2.36% of players have earned the achievement in hardcore mode
    3.95% of players have earned the achievement in softcore mode

  • Collect at least 150 rings in Gigantic Angel I

    95 (53) of 2,075 – 4.58%

    2.55% of players have earned the achievement in hardcore mode
    4.58% of players have earned the achievement in softcore mode

  • Collect at least 150 rings in Gigantic Angel II

    103 (60) of 2,075 – 4.96%

    2.89% of players have earned the achievement in hardcore mode
    4.96% of players have earned the achievement in softcore mode
  • Special Stage

    (25) (290)

    Collect at least 195 rings in Special Stage

    85 (39) of 2,075 – 4.10%

    1.88% of players have earned the achievement in hardcore mode
    4.10% of players have earned the achievement in softcore mode
  • Chaotic Space

    (50) (493)

    Complete Chaotic Space with more than 45 rings

    73 (45) of 2,075 – 3.52%

    2.17% of players have earned the achievement in hardcore mode
    3.52% of players have earned the achievement in softcore mode

  • Complete Neo South Island on Normal without losing rings to the boss.

    450 (256) of 2,075 – 21.69%

    12.34% of players have earned the achievement in hardcore mode
    21.69% of players have earned the achievement in softcore mode

  • Complete Secret Plant on Normal without losing rings to the boss.

    330 (202) of 2,075 – 15.90%

    9.73% of players have earned the achievement in hardcore mode
    15.90% of players have earned the achievement in softcore mode

  • Complete Cosmic Casino on Normal without losing rings to the boss.

    230 (147) of 2,075 – 11.08%

    7.08% of players have earned the achievement in hardcore mode
    11.08% of players have earned the achievement in softcore mode

  • Complete Aquatic Relix on Normal without losing rings to the boss.

    137 (79) of 2,075 – 6.60%

    3.81% of players have earned the achievement in hardcore mode
    6.60% of players have earned the achievement in softcore mode
  • Mecha Madness

    (10) (84)

    Complete Aerobase on Normal without losing rings to the boss.

    118 (53) of 2,075 – 5.69%

    2.55% of players have earned the achievement in hardcore mode
    5.69% of players have earned the achievement in softcore mode

  • Complete Gigantic Angel on Normal without losing rings to the boss.

    109 (51) of 2,075 – 5.25%

    2.46% of players have earned the achievement in hardcore mode
    5.25% of players have earned the achievement in softcore mode
  • Space Survivor

    (25) (214)

    Complete Last Utopia on Normal without losing rings.

    102 (52) of 2,075 – 4.92%

    2.51% of players have earned the achievement in hardcore mode
    4.92% of players have earned the achievement in softcore mode
💬Official Forum Topic
Recent Players:
UserWhenActivity
SageClock2023-10-04 22:44:19Rolling around Cosmic Casino Act I.
xavier13062023-10-04 20:52:47Rolling around Neo South Island Act I.
Zack1132023-10-04 15:56:21Rolling around Aerobase.
bgladden2023-10-03 05:28:55Playing Sonic The Hedgehog: Pocket Adventure
Retroenterprise2023-10-02 17:02:06Rolling around Neo South Island Act I.
Miguelthegamer5192023-09-29 22:20:50Rolling around Neo South Island Act I.
smhx2023-09-12 21:53:18Rolling around Neo South Island Act II.
maleficmax2023-09-10 20:06:45Playing Sonic The Hedgehog: Pocket Adventure
SebKaz2023-09-09 12:47:29Playing Sonic The Hedgehog: Pocket Adventure
youalreadydid2023-09-07 02:41:13Rolling around Neo South Island Act I.

Recent comments

(See all 30)

ColonD 19 Mar 2018 17:47
Are you using RALibRetro, RetroArch isn't working but RALibRetro should be.
ColonD 19 Mar 2018 18:10
Also double check your MD5 for the rom, according to CertUtil mine is b8a899ae2b0f1dfa0db5417de745a51e
ColonD 19 Mar 2018 18:30
Here is a video of me starting from scratch, setting up the emulator and rom, starting the game and getting the Hardcore Hammer achievement: https://www.youtube.com/watch?v=3rQKIPb-s2g
ColonD 19 Mar 2018 18:31
Ignore the fact that the emulator lags a lot, RetroArch does not lag but RALibRetro lags a lot for me. Also ignore me dying at the start of the second level...
quiroalvaro 19 Mar 2018 18:54
I got it! thank you so much for your time and patience :)
ColonD 19 Mar 2018 19:25
No problem, do you know what the problem was?
quiroalvaro 19 Mar 2018 19:40
In retropie didn t work. But i try in ralibretro and works :)
BryanTrusty 31 Mar 2018 03:36
I hope you get this working in retroarch. Either way great job. This is an awesome game and platform to have cheevos on.
ColonD 31 Mar 2018 12:49
It will get fixed eventually by someone who works on the emulators, but I do not think it is their top priority currently (considering there are only two functioning games for the platform right now). I'll post in the comments here when it is fixed.
BryanTrusty 31 Mar 2018 12:52
Thanks ColonD
ColonD 4 Apr 2018 01:01
Updated Emerald achievement so that it uses Special Stage Ring Count address instead of the previous not accurate "Bonus Stage" address. If anyone had any issues with this achievement, the achievement should be fixed now.Sorry for the inconvenience.
ColonD 25 Apr 2018 18:11
Good news, the game now works in RetroArch 1.7.2, so if you have not updated RetroArch and are wanting to play this game then you know what to do :)
BryanTrusty 22 May 2018 00:12
Thanks!
ColonD 22 May 2018 01:46
No need to thank me, I just contacted an admin (specifically meleu) and he fixed the RetroArch issue.
DavidYTBR2 15 Dec 2021 05:47
Mastered!
SuperCarloConti 27 Jun 2022 10:23
There is no way to see in which level i miss a photo? I missed only 3 and no idea where they are
RyborgGaming 18 Sep 2022 21:48
Mastered! Also to find missing puzzle pieces, use this guide: http://www.din.or.jp/~koryan/sonic/db-npa.htm#map
AfroRyan 19 Dec 2022 18:10
I added a leaderboard for the Special Stage Gauntlet that unlocks in the Game Options menu after solving all 6 puzzles. It only submits your score when you successfully collect every emerald. If you've never done this before, prepare for a cool animation once you're successful :)
MilesTailsFan2005 16 Mar 2023 09:55
this game is not 10/10 material
automidnight 10 Apr 2023 20:15
Definitely one of the better sonic games I've played