Fungus Tunnel
=============

+-- Level +1 ---------------------------------------------------------------------+
|                                                                                 |
|                     *--*                                                        |
|                    /                                                            |
|                   /                                                             |
|            *--*--*                                                              |
|           /                                                                     |
|          /                                                                      |
|         *                                                                       |
|        /                                                                        |
|       /                                                                         |
|   %--*                                                                          |
|   v                                                                             |
|                                                                                 |
+---------------------------------------------------------------------------------+

+-- Ground level -----------------------------------------------------------------+
|   ^                                                                             |
|   %        *--*--*                                                              |
|    \      /  /    \                                                             |
|     \    /  /      \                                                            |
|      *--*  *        *                                                           |
|             \       |                                                           |
|              \^     |                                                           |
|               %     *                                                           |
|                      \                                                          |
|                       \                                                         |
|                        *                                                        |
|                       /|                                                        |
|                      / |                                                        |
|                     *  *     *--*                                               |
|                     |   \    |   \                                              |
|                     |    \   |    \                                             |
|                     *     *  *     *                                            |
|                           |   \    |                                            |
|                           |    \   |                                            |
|                           *     *  *                                            |
|                            \   /   |                                            |
|                             \ /    |                                            |
|                              *     *                                            |
|                              |                                                  |
|                              |                                                  |
|                              *                                                  |
|                               \                                                 |
|                                \                                                |
|                                 *                                               |
|                                  \                                              |
|                                   \                                             |
|                                    *  %                                         |
|                                    | /v                                         |
|                                 ^  |/                                           |
|                                 %--*                                            |
|                                                                                 |
+---------------------------------------------------------------------------------+

+-- Level -1 ---------------------------------------------------------------------+
|                                       ^                                         |
|                                       %                                         |
|                                       |                                         |
|                                       |                                         |
|                                       %                                         |
|                                       v                                         |
|                                                                                 |
+---------------------------------------------------------------------------------+

+-- Level -2 ---------------------------------------------------------------------+
|                                       ^                                         |
|                                       %--*                                      |
|                                          |                                      |
|                                          |                                      |
|                                          *                                      |
|                                         /                                       |
|                                        /                                        |
|                                       %                                         |
|                                       v                                         |
|                                                                                 |
+---------------------------------------------------------------------------------+

+-- Level -3 ---------------------------------------------------------------------+
|                                       ^                                         |
|                                       %                                         |
|                                        \                                        |
|                                         \                                       |
|                                          *                                      |
|                                           \                                     |
|                                            \                                    |
|                                             *--*                                |
|                                                 \                               |
|                                                  \                              |
|                                                   %                             |
|                                                   v                             |
|                                                                                 |
+---------------------------------------------------------------------------------+

+-- Level -4 ---------------------------------------------------------------------+
|                                                                                 |
|                                                %                                |
|                                                v\                               |
|                                                  \                              |
|                                                   *                             |
|                                                   |                             |
|                                                   |                             |
|                                                   *                             |
|                                                  /                              |
|                                                 /                               |
|                                                *                                |
|                                                |                                |
|                                                |                                |
|                                                *                                |
|                                                 \                               |
|                                                  \                              |
|                                                   *                             |
|                                                   |                             |
|                                                   |^                            |
|                                                   %                             |
|                                                                                 |
+---------------------------------------------------------------------------------+

+-- Level -5 ---------------------------------------------------------------------+
|                                                                                 |
|                                             *--*--*--*--*           *           |
|                                            /             \         / \          |
|                                           /               \       /   \         |
|                                          *                 *--*--*     *        |
|                                           \                            |        |
|                                            \   ^                       |        |
|                                             *--%                       *--*>-*  |
|                                                                              v  |
|                                                                                 |
+---------------------------------------------------------------------------------+