- This article is about the episode, for the character see Tashy 497 (character).
"Tashy 497" is the ninth episode of Sym-Bionic Titan. It debuted on November 12, 2010.
When Modula finds a cute but deadly new alien to unleash upon the group, Lance, Ilana, and Octus find the cuddly little alien and decide to keep it as a pet. However, they soon discover that the cute creature isn't what it seems. The creature is generating enough energy to wipe out Earth, so the trio reluctantly let their beloved pet die peacefully in a glorious burst of energy. At an astronomy center, Octus locates a nebula cluster where they let their pet go, which the scientist of the station allows them to name for discovering it. In agreement, they come to name the cloud Tashy 497, as a mix of the names they wanted to name the creature.
General Modula is displeased with all the failures, his previous Mutraddi beasts have had against the Sym-Bionic Titan. He goes in search of the strongest Mutraddi beast he can find. Of all the great monstrous Mutraddi beasts, he is shown by Duraak, there is one in particular that all the other Mutraddi beasts fear most, one with the destructive capacity to annihilate an entire planet. The Mutraddi beast is then sent in a missile to Earth in order to destroy the Sym-Bionic Titan. Lance, Ilana, and Octus intercept the missile before it can crash on Earth and among the debris they find a large sealed container. Lance slices it open to find a cute and cuddly Mutraddi beast who they keep as a pet until Octus finds out that the Earth's atmosphere is making it sick. Ilana names him Mushy because he is mushy like a marshmallow and he enjoys eating them. Lance names him Tarax, after the great Galalunian general and calls him 'tough for a little guy'. Octus names him "497" because he's the 497th creature he encountered on Earth. Octus comes to find out that he is a living bomb, and that he isn't stable in Earth's atmosphere. The more he stays on Earth, the more he gets sick, which will trigger him into exploding at his death. The explosion would be large enough to destroy an entire planet. Octus convinces Lance and Ilana that they must send it a safe distance away from Earth into space so when it dies it will not destroy Earth. The team forms Sym-Bionic Titan and then fly him to space far enough from planet Earth. After the Mutraddi slime safely self destructs in space, Octus discovers that its explosion has created a new constellation. An astronomer tells Lance, Ilana, and Octus that since they had discovered it they get to name it. Ilana had wanted to name it Mushy and Lance wanted to name it Tarax and Octus just referred to it as 497. They discuss the name and decide to put all their names into one, Tashy 497.
- The desert area with house and windmill is a reference to Courage the Cowardly Dog's home, the Middle of Nowhere.