Game freezes so much that I cannot even play. Also there are not so many characters in the game and present ones are not enough. They look a lot at first but they are just higher rarity and stats version of same characters with same skills. Another thing is, even if there were enough characters you could not get them because rewards are not enough and this game is not free to play friendly at all. Collab characters does not make up for all these things I have written. WORST GAME EVER!