This was a wild ride and I loved it! Excellent use of animation and transitions that just kept you pumped for the next round. I would've liked to be able to jump into the boss fight directly on another playthrough without the practicing again, but it's all so well done that I'm not complaining . The use of color and telegraphing for all the attacks always felt fair and it really was rewarding to feel all that practicing pay off in the end:)
I got ABBA on first time through and died 3 or so times in the end. The music and sfx were all top notch too so congrats for putting together something excellent for the jam!