Where to find the 6 playable characters in SA and their effects on your chao:

-------------------------------------------
|  CHARACTER  |   LOCATION   |   EFFECT   |
-------------------------------------------
|     Amy     |     Cave     | Recover HP |
-------------------------------------------
|     Big     |     Ocean    |  +10 Swim  |
-------------------------------------------
| E-102 Gamma |     Tower    |  Nothing   |
-------------------------------------------
|   Knuckles  |    Shrine    | +10  Power |
-------------------------------------------
|    Sonic    |     Waste    |  +10  Run  |
-------------------------------------------
|    Tails    |     Cliff    |  +10  Fly  |
-------------------------------------------


The path for the Chao Adventure game:

                                          FIELD
                                          /   \
                                         /     \
                                        /       \
                                       /         \
                                      /           \
                                     /             \
                                    /               \
                                   /                 \
                                  /                   \
                                BEACH                WOODS
                                /   \                /   \
                               /     \              /     \
                              /       \            /       \
                             /         \          /         \
                            /           \        /           \
                           /             \      /             \
                          /               \    /               \
                         /                 \  /                 \
                        /                   \/                   \
                      OCEAN                CLIFF                WASTE
                      /   \                /   \                /   \
                     /     \              /     \              /     \
                    /       \            /       \            /       \
                   /         \          /         \          /         \
                  /           \        /           \        /           \
                 /             \      /             \      /             \
                /               \    /               \    /               \
               /                 \  /                 \  /                 \
              /                   \/                   \/                   \
            CITY                DESERT                TREES               JUNGLE
            /  \                /    \                /   \                /   \
           /    \              /      \              /     \              /     \
          /      \            /        \            /       \            /       \
         /        \          /          \          /         \          /         \
        /          \        /            \        /           \        /           \
       /            \      /              \      /             \      /             \
      /              \    /                \    /               \    /               \
     /                \  /                  \  /                 \  /                 \
    /                  \/                    \/                   \/                   \
  TOWER               OASIS                SHRINE                RIVER                CAVE


The chao will walk/run in all areas, except listed below:

Climbing areas: CLIFF, TREES, TOWER
Flying areas:   WASTE, CITY, CAVE
Swimming areas: OCEAN, OASIS, RIVER

File by Katrice "True Red" Georges
Chao Adventure Game (c) Sonic Team/SEGA.