Walkthrough:Kingdom Hearts Re:coded/Olympus Coliseum

Following your success at Wonderland, you find your way to Olympus Coliseum, an arena where all the top heroes compete in battles. After Data-Sora and Mickey talk to each other, you begin Outside the Coliseum and you can now replay and revisit earlier worlds from a save point. The opening area is fairly empty and devoid of any treasure so you can go straight through the north door to enter the Vestibule.

Save your game before talking to the strange goat, Philoctetes in the centre of the room. As it turns out, the Coliseum is infested with bugs and the champion, Hercules, is missing after he tried to sort them out. Data-Sora quickly discovers the world's Keyhole and enters it to reach the Labyrinth. The gameplay has drastically changed to have turn-based combat but the game explains all of these new mechanics through shreds of wisdom.

You start at Layer 01, the first level. Go to the westwards room and pick up the scrap of paper that teaches you about battles and how to fight. A Shadow then attacks you so you can try out the new combat system then. After the battle, break through the wall of blocks north to get to the next room, which has a scrap of paper teaching you about the bug level. Basically, your aim is to reduce the gauge in the top-left corner below the white line and you do this by destroying Bug Blox and Heartless. Once you've demolished the wall, continue on to the next room, where you'll learn about combos and blocking. Although it can be tricky at first, you'll get used to having timely reactions in order to do combo attacks and block damage. If you proceed onto the next room, a cutscene involving Hades will play. Once it's over, read another scrap of wisdom and then reduce the bug level in the next room to level 1, revealing a Rare Prize Block that contains a Strength +1 and allowing entry to the room southward.