For me S2 costs 20.48 euros and I can only afford 20 euros , can you do something? Pls , I really want S2 . And now , that i can i can only pay 20 Euros .

Buy S1 only now, you will be able to enjoy new content, feel good about supporting devs, and you will save some spare for some drink or food.

Then sometime in the future you can upgrade from S1 to S2. In total you will pay the same price, as buying the demo-to-S2 license, but you can enjoy at least S1 today.

Bring bottles parents back to super and ask parents to pay those extra cents

S1 is already awesome, stick with that

^_^