I just finished Blasphemous for the first time last week. I had no idea about the Bloodstained crossover. I accidentally came across a room with a stained glass painting and I thought "ooh this gives me bloodstained vibes". Then wait the music changed, and it's the music from bloodstained. I was so excited because I thought I found a little Easter egg. As I get further into the game I stumble into another room and shit it's Miriam herself! I was so happy lol. I loved the platforming challenges, they were tough but fair (for the most part). The timer added some extra pressure which was great but there are some easy skips in some levels that had me finishing the challenge with about a whole minute to spare