The Massive is about the size of a small planet, with a pink and purple color pattern. It's main body is protruded by subsections and weapons. On the front of the Massive, there is a large Insignia of the Irken Empire in black.
- Space Transportation- The Massive's primary function is to travel through galaxies.
- Energy Absorption- With modifications, it can contain equipment efficient enough to drain a star.
- Shielding- The ship was protected by a low frequency filter of Ecto-Energy.
- In Chapter 5: Oversight, The Massive was first seen by The Heroes draining the energy from a Dwarf Star in Invader Zim's Universe.
- In Chapter 6: Weightless, The Massive is destroyed by Ben Tennyson using his transformation Lodestar.
- The Massive is a top-of-the-line Irken spaceship, with a limited amount of them built. One is used by The Tallest, The Irken's leaders, as their base of operations.