Hi all. I just beat it with 25 memories. You need to use the 4 ball option to not waste any shots. Also i needed to power up angry for the very last memory using gems. As you bounce fire shots off the walls to cut them try and go through the characters, it seems to go further. Still it took me 2 weeks and 1 month before that in frustration. Dont waste gems, you need to have 15 memories after clearing 14 characters and you need every memory.