▁intr icate ▁mechanical ▁details . ▁ ▁Dance ▁Theatre ▁challenge ▁( before ▁ 2 0 1 5 ) ▁In ▁Dance ▁Theatre , ▁teams ▁build ▁and ▁program ▁rob ots ▁that ▁act ▁out ▁a ▁story - based ▁song . ▁For ▁example , ▁rob ots ▁could ▁be ▁different ▁characters ▁featured ▁in ▁it . ▁This ▁section ▁of ▁Rob o C up ▁Junior ▁is ▁more ▁difficult ▁than ▁Dance , ▁as ▁the ▁rob ots ▁must ▁complete ▁more ▁special ised ▁actions . ▁ ▁See ▁also ▁ ▁List ▁of ▁robot ics ▁compet itions ▁ ▁Rob o C up ▁ ▁World ▁Rob ot ▁Olymp i ad ▁( an ▁alternative ▁to ▁Rob o C up ▁Junior ) ▁ ▁References ▁ ▁External ▁links ▁▁▁ ▁Category : Rob o C up ▁Category : Organ izations ▁established ▁in ▁ 1 9 9 8 ▁Category : Rob ot ▁s occer ▁compet itions ▁ ▁ja : ロ ボ カ ッ プ # ロ ボ カ ッ プ ジ ュ ニ ア <0x0A> </s> ▁The ▁SY M ▁D D 5 0 ▁( also ▁known ▁as ▁the ▁SY M ▁J ol ie ▁or ▁City ▁Tre k ) ▁is ▁a ▁single - cy l inder , ▁, ▁oil ▁inject ed ▁two - stroke , ▁automatic ▁sc oot er ▁manufact ured ▁by ▁Taiwan ese ▁company ▁SY M ▁Mot ors . ▁ ▁Over view ▁The ▁D D 5 0 ▁has ▁continu ously ▁variable ▁transmission , ▁auto - cho ke , ▁both ▁a ▁self - st arter ▁and ▁kick ▁st arter , ▁and ▁auto - lub ric ation ▁to ▁simplify ▁operation . ▁Al ong ▁with