It's too hard for players, I have gone to so many lobbies and I hear people complain about how it's too hard, I say that you should nerf it but don't make it too easy
Block round: you could add at least 10 or 5 more seconds depending on how many blocks you need, like the 9 or 8 block round, you have around 10 seconds to get that much in, me and others tried it and it's just too difficult
Rhythm round: There's actually nothing wrong but I say you make it just a little earlier when the player has to strike the pose, I heard players complaining about as soon as they strike the pose, it doesn't register
Zombies: I say you reduce the amount of zombies a little so you have a better chance of winning the battle
Note: I know it just came out yesterday so I expected bugs, I just wanted to be sure you could know what to work on for a patch fix, thank you for listening.