Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
James gets bored with his game so decides to play a different one.  That game promises 100 hours of gameplay but 80% of that is boring grinding.  However, the expansion does add another 30 hours of enjoyable gameplay.  How much enjoyable gameplay does James get?

### Response:
 Mchezo wa kwanza ulikuwa na masaa 100*.8=<<100*.8=80>>80 ya kusumbua.
Hivyo ilikuwa masaa 100-80=<<100-80=20>>20 ya kucheza vizuri.
Upanuzi uliongeza muda wa kucheza vizuri hadi 20+30=<<20+30=50>>50 masaa.