These characters are really fun, I love all the amazing little details, you can just see how much effort was put into this mod
It's not perfect however, and I'll go into that real quick, though most likely these things have already been said, I'll say it anyway
1) The number 1 issue is the menu. I love the menu, but it being forced over a button causes too many issues with other mods. There's a reason most servers refuse to add this mod unless it's the only mod
2) The peelout is fairly dissatisfying to use when you lose the extra speed almost immediately. Other peelout mods allow you to retain that speed until you slow down on your own, whether from just stopping, hitting a wall, or something else
3) Fluffy himself is super dissatisfying to play as in general. He's super slow, and flying upwards cuts what little forward momentum he had before. He's even worse in water. Makes me just not want to play as him, when Pointy is so much better
4) The easter egg being locked behind a secret player name. Maybe I want to keep my name as "Xian". Plus, having it as a player name makes it so if the mod is loaded on a server, most the players will change their name to that secret name, making it impossible to tell who's who
I hope you take well from these opinions. Besides these few glaring issues, this mod truly is something special