"Dragon Ball Z, Vol. 16: The Room of Spirit and Time" include chapter 180 - 191.
Included chapters
Chapter 180
Tale 180 Goku Meets Cell
Chapter 181
Tale 181 Vegeta and Trunks Emerge
Chapter 182
Tale 182 Vegeta's Confidence
Chapter 183
Tale 183 Beyond the Super Saiyan
Chapter 184
Tale 184 Super Vegeta
Chapter 185
Tale 185 Cell's Last Chance
Chapter 186
Tale 186 The Evil Truce
Chapter 187
Tale 187 Vegeta vs. Trunks?
Chapter 188
Tale 188 The Complete Cell
Chapter 189
Tale 189 A Reversal
Chapter 190
Tale 190 The Final Flash
Chapter 191
Tale 191 Trunks Steps In
Plot summary
Cell has fused with android #17, becoming practically invincible--but not for long! Training in the Room of Spirit and Time, where a year passes for every day outside, Vegeta and Trunks have gone beyond the Super Saiyan, reaching a level of power even greater than second-stage Cell! Now Cell is the one who is outmatched--but Vegeta hates a boring fight. Succumbing to his pride, Vegeta agrees to help Cell fuse with android #18, the last element he needs to become "perfect," so he can have the honor of defeating the strongest being in the world!
