You have the choice between several levels (V1 V2 V3), the most, is that during the exercises you can see your progress and the scores you achieve.
Unenkinga phakathi kwamazinga amaningana (i-V1 V2 V3), okuyinhloko, ukuthi ngesikhathi sokuzivocavoca ungabona inqubekelaphambili yakho kanye namaphuzu owenzayo.