I am being tested maybe 80% or more just on the genitive case, yet I have no idea what that even means or how to use them. When I started on memrise, the genitive case testing didn't even exist. I'm tired of it and I want to turn it off completely at this point. I'm using another method to actually learn to speak the language and cases haven't even been hinted at yet. Until I at least have some clue how to use them, I don't care to be tested on them.
Even when I get them right, I'm tested on both the nominative and the genitive repeatedly. I won't even finish the word list I'm in because I have 200 words waiting for me every day already.