Much like Ben's first transformation into Heatblast in the original series, this time he transforms into Swarmfire, which is also a fire-based alien.
Originally aired as an a hour long series premier episode. Part 2 aired immediately after this episode.
The new Omnitrix now shows holograms of the aliens instead of silhouettes.
Gwen's eyes glowing pink is much like Saturn Girl from the Legion of Super Heroes.