Again, more skewing to the serious side, but appropriately. Strangely enough my highlight is Gohan's scream after Goku teleports away. But "you missed a spot" by Cell is another highlight.
This episode and how it's being handled is kind of a perfect summary why the Cell arc is my fave despite being so self-serious.
All the character stuff just really works for me. Gohan being pushed into the transformation, Gohan's transformation turning out to be terrifying, him not listening to Goku (though from what I get that was an anime filler), Goku's sacrifice, Cell still returning and the beam struggle after that.
I prefer a better mix of comedic and serious or more skewing comedic for DB, and a lot of the Cell stuff is pretty uncharacteristicly bleak, but it also has a bunch of good character writing I really like.