EL_EXPANDABLE_WALL_VERTICAL,
EL_EXPANDABLE_WALL_ANY,
EL_EXPANDABLE_WALL_GROWING,
+ EL_BD_EXPANDABLE_WALL,
EL_BD_WALL,
EL_SP_CHIP_SINGLE,
EL_SP_CHIP_LEFT,
EL_EXPANDABLE_WALL_HORIZONTAL,
EL_EXPANDABLE_WALL_VERTICAL,
EL_EXPANDABLE_WALL_ANY,
+ EL_BD_EXPANDABLE_WALL,
EL_BD_WALL,
EL_WALL_SLIPPERY,
EL_EXIT_CLOSED,