Various Blastoise

Final form of the Kanto starter, Squirtle. Just like him, very popular, both among fans and in the Pokemon universe. In the sixth generation, Unova, when the mega-evolution mechanic was introduced, Blastoise was one of the Pokemon that get that option.

Below is a list of episodes in which this Pokemon appears – the first number is the overall episode number, the second is the episode number within the sub-series, AG is Advanced Generation, SM is Sun & Moon, PK is a special episode (focusing on Pikachu) and PG is Pokemon Generations. Episode numbers according to the schedule on Bulbapedia.

017 – Island of the Giant Pokémon – Blastoise in the form of a giant robot, one of the attractions on the island.
020 – The Ghost of Maiden’s Peak – – Blastoise appears as an illusion (and undergoes a fusion with Venusar, merging into one Pokemon!)
025 – Primeape Goes Bananas – Shown when Ash recounts how he got his hat.
055 – Pokémon Paparazzi – Todd has a Blastoise mask.
060 – Beach Blank-Out Blastoise – The whole stretch is centered on the island (shaped like a turtle shell) where lives Blastoise, leader of the local Squirte and Wartortle.
069 – Lights, Camera, Quack-tion – Blastoise is visible for a moment.
085 – Fit To Be Tide – Cissy’s (one of gym leaders) Blastoise shows up.
098 – A Way Off Day Off – Cissy’s (one of gym leaders) Blastoise shows up.
106 – The Pokémon Water War – This episode features a team of poke firefighters with groups of Squirtle, Wartortle, and Blastoise.
111 – Hello, Pummelo! – Cassie’s Blastoise shows up in the flashback, the photo in the Hall of Fame also shows a Blastoise belonging to some trainer.
113 – Viva Las Lapras – Flashback shows Cassie’s Blastoise.
123 – Spinarak Attack – Blastoise in the form of a fountain/sculpture appears.
147 – The Fire-ing Squad! – Team Blastoise (from Episode 106) appears in Flashbacks, and take a part in competition.
194 – Ring Masters – The episode shows “big” Pokemon fights, there are scenes with Blastoise.
245 – Will the Real Oak Please Stand Up? – Only in verbal form – poetry about Blastois appears.
248 – One Trick Phony! – One of the pokemon in the “battle park” that the main characters visit is Blastoise, he have a few scenes.
269 – The Ties That Bind – Gary releases his Blastoise to fight.
270 – Can’t Beat the Heat! – Gary’s Blastoise fights Ash’s Pokemon!
272 – Johto Photo Finish – Gary uses his Blastoise to fight Team Rocket.
336 – AG062 – Disguise Da Limit – Coordinator’s Blastoise appears in one scene.
366 – AG092 – Judgment Day! – Jimmy’s Blastoise appears (evolved, started out as a wartortle in the episode).
370 – AG096 – Training Wrecks – In one scene there is some trainer’s Blastoise, holding him (the trainer) by the legs as he exercises.
385 – AG111 – Eight Ain’t Enough – Some trainer’s Blastoise shows up.
451 – AG177 – Grating Spaces! – Blastoise is shown in the background, in a collage (fantasy) of water pokemons when Team Rocket talks about taking over the gym.
511 – DP045 – Ill-Will Hunting! – Gary’s Blastoise reappears.
538 – DP072 – Pokémon Ranger and the Kidnapped Riolu! (Part 2) – Three Blastoise appear and help in this episode.
557 – DP091 – One Team, Two Team, Red Team, Blue Team! – One of the participating trainers rides on Blastoise.
623 – DP157 – Gotta Get a Gible! – Team Rocket mounts a robot that was clearly modeled on Blastoise.
932 – XY133 – Coming Apart at the Dreams! – A flashback with Mega blastoise from Pokémon: Mega Evolution Special I appears.
966 – SM027 – A Glaring Rivalry! – One of this series’ significant heroes, Gladion, fights someone who uses Blastoise.
988 – SM049 – Mission: Total Recall! – In the scene showing the children’s room with pokemon stuffed animals, one of the stuffed animals is in the form of a Blastoise.
1039 – SM100 – Battling the Beast Within! – In one scene, one of the characters describes a fight with a Guzzlord, one of the Pokémon that fought (and lost) was Blastoise.
1087 – JN002 – Legend? Go! Friends? Go! – Squirtle is visible on the poster, Blastoise can be seen in the photo in the presentation. In person, Squirtle and Wartortle are seen in this episode.
1100 – JN015 – A Snow Day for Searching! – The Blastoise figure appears in a memory and is also visible “in real time”, from a different angle.
1143 – JN058 – A Rollicking Roll… Eyes on the Goal! – An episode whose second section is completely turtle, with all the Poke-turtles appearing in it (existing at the moment of the episode’s premiere, of course), including NAME. We have screenshots from this episode separately, in this note.
1221 – JN136 – This Could be the Start of Something Big! – Squirtle, Wartortle and Blastoise appears. Wartortle and Blastoise are with some trainer, Squirtle is with Oak.

PO01 – File 1: Red – At the beginning, in the background behind Professor Oak you can see contour silhouettes of many pokemons, including Blastoise.
PO04 – File 4: Charizard – Blue’s Blastoise fights with the main character’s Pokemon.
PK01 – Pikachu’s Vacation -You can see Blastoise in one cutout scene, with other water Pokémon.
SS001 – A Family That Battles Together Stays Together! – Blastoise is one of the Pokemon in the gym.
SS029 – Pokémon: Mega Evolution Special I – Blastoise appears and mega-evolves.
PG03 – The Challenger – Blastoise appears.