In this video I show you how to unlock play the three secret zones in Sonic The Hedgehog 2 for iOS and Android – Hidden Palace Zone, Proto Palace Zone & a secret 8th Special Stage! These stages are extremely fun to play and are exclusive to this port of the game only. Text guide is as follows:

1. Hidden Palace. Level select – choose new game, no save and the tap the S, E, G, A letters on the sega logo and you will hear a ring sound. Then on the title screen as Sonic and Tails appear, take two fingers and press and hold down together at the same time near the bottom right hand corner of the screen and keep them held down for around 5 seconds and you’ll be reported to level select. Now simply select Mystic Cave Act 2 and fall down the hole showm in the video.

2. Proto Palace Zone – go too level select, but this time on the sound test menu you need to enter two codes – one for debug and one proto code. Enter 01, 09, 09, 02, 01, 01, 02, 04 for debug, you’ll hear a ring sound. Then play 03, 03, 03, 0B, 10, 10, 10, 04 you’ll hear another sound. You must enter both codes for this to work. Then select Hidden Palace Zone and you’ll be taken to proto palace zone.

3. Special Stage. Enter level select. Play song 07 and then select special stage.




  1. I think it's absolutely awesome that these zones were finally made playable – they are great fun to play. It's a shame that this version of Sonic 2 was not ported to PS4, Switch, XB or PC as I'd love to play these levels on those formats and have the same enhancements this port has.

  2. Red The fox Reply

    Porto palace really surprised me.
    I mean, original music, original level design, and in the modern iOS port?
    How much mor can you get?
    Also is there anyway you can get all levels in prototype form?

  3. AlexProductionz Gaming and more Kid Channel Reply

    Yo once I was in Mystic Cave and I randomly found this lol

  4. Ana Lasalle Reply

    How did u even get the frick’n code!!!!!😐😐😑😑😬😬😶😶😶😶💔❤️🧡💛💚💙💜

  5. I came, I saw, I watched an advert about formula E? – gotta go fast I guess!.

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