The "sambal hijau" or green chilli sambal comes spread all over the chicken (which they fry only upon order, so be prepared to wait). This mashed up green chill is much tamer in terms of spiciness than the red/dark red version you get with most "ayam penyets". However, what it lacks in heat, it compensates in fragrance. Although oily, I find it very appetising mixed into the rice.
Since I wanted more vegetables, I also ordered a "sambal kangkong" ($4) which was ok except that they could have cut back on the fried shallots.