Yea, i invested there from level 4! and they never paid at the end of each level! may their payment system is buggy or it's total scam! funny is that it's full of bugs! suddenly in between level 8 it rewarded like 4 times in just 5 minute to everyone!! but no one could cash-out!
i contacted with thier site and emails! but no one reply! it's coding is exactly like makebtc site! i wonder if the original maker of makebtc created this to get more money in his hand to expand his own project on makebtc!