| 141 | "The Paradox" |
| 142 | "The Nega Writer" |
| 143 | "Return to the Field" |
| 144 | "Controlling the Future" |
| 145 | "The Fun Times Bridge" |
| 146 | "The Great War, part 1" |
| 147 | "The Great War, part 2" |
| 148 | "The Great War, part 3" |
| 149 | "The Great War, part 4" |
| 150 | "The Final Showdown" |
Season fifteen of T3H Metroid Galaxy is an original plot, although loosely based on Harry Potter and the Deathly Hallows, in which Samus and friends attempt to find the two halves of the Duo Stone to defeat the Future Writer once and for all.