@Dinoshi 64 Sadly, Toriel did not become playable in Chapter 3, and no one else became playable in Chapter 4, but one can hope for the future chapters.

“The splash effect should be violent”

It's actually really likely for Catti to join the fun gang in future chapters, as her face sprites are named with just the first initial of her name in the files of the game ("c",) which matches with the naming scheme of the fun gang character's face sprites ("r" for Ralsei, "s" for Susie ect.)

Toriel's face sprites also have this same naming scheme ("t") so she'll definitely join us in Chapter 3. (Just to clarify, only members of the fun gang have this naming scheme, as the rest of the lightners, like Sans, Burgerpants, or Catty use their full names for their face sprites in the files.)

So just a heads up for everyone here to update this sheet to remove Catti in the future.