As a popular game, "Simon" inspired many imitators and knockoffs. A slew of imitators fan tributes and parodies followed. Felix's great success also spawned a host of imitators. The show rose in the ratings and spawned many imitators. Monkeys were regarded as shameless and impish creatures and excellent imitators of human behaviour. It also spawned imitators, including the CMT series "Trick My Truck". Tarzan's popularity inspired numerous imitators in pulp magazines. Magnus harmonicas and several imitators soon became commonplace, particularly among children. Its success created a market for the invasion literature subgenre, which was flooded by imitators. Being imitators requires obedience exemplified by moral behavior. The song is a parody of blues music, specifically English imitators of blues. There are now many imitators, store brands, etc. Cooper's apparent success inspired a flurry of imitators, mostly during 1972. Juul's success has inspired a flood of imitators, namely pod-mod devices with similar boxy designs. The vocal technique is called melisma, and it has inspired a host of imitators.