How can we get the free level to test it? I don't see it.

Level 1 -  0.04 BTC
Level 2 -  0.05 BTC
Level 3 -  0.10 BTC
Level 4 -  0.25 BTC
Level 5 -  0.50 BTC
Level 6 -  1.00 BTC
Level 7 -  5.00 BTC
Level 8 - 10.00 BTC