Dr. Panda Developer Position interview questions

I got some additional questions and a test at home, which was to do the core gameplay of a game. It took me half a week to do. After I sent it back to them, I didn't receive any reply and had to "remind" them about my application. After almost a month waiting, I had to "remind" them again. I didn't receive any valuable feedback or reasons for not continuing with my application. I consider their attitude rather impolite and the whole process with their test a waste of my time.