Rabit

var garden = [], directions = input[0].split( /, /g);
    var line = 0, cell = 0;
    var match, regex = /{([#&!*])}/g;
    var path = '';

    var rabbit = {
        "&" : 0,
        "*" : 0,
        "#" : 0,
        "!" : 0,
        "wall hits" : 0
    };

    for (var row in input) {
        if (row > 0) {
            var tokens = input[row].split( /, /g);
            garden.push(tokens);
        }
    }

    directions.forEach(function(direction) {
        if(changeCell(direction)) {
            var currCell = garden[line][cell];
            while (match = regex.exec(currCell)) {
                rabbit[match[1]] += 1;
            }

            path += currCell.replace(/{([#&!*])}/g, '@') + '|';
        }
    });

    function changeCell(dir) {
        var tempCell = cell;
        var tempLine = line;

        switch (dir) {
            case 'right' : cell++; break;
            case 'down' : line++; break;
            case 'left' : cell--; break;
            case 'up' : line--; break;
        }

        if ((line < 0) || (line >= garden.length)) {
            rabbit['wall hits']++;
            line = tempLine;

            return false;
        }

        if ((cell < 0) || (cell >= garden[line].length)) {
            rabbit['wall hits']++;
            cell = tempCell;

            return false;
        }

        return true;
    }

    if (path !== '') {
        path = path.substring(0, path.length - 1);
    } else {
        path = 'no';
    }

    console.log(JSON.stringify(rabbit) + '\n' + path);