Dagbar's Aliens

Dagbar the Unseen's aliens are the secondary yet imaginary antagonists in The Perfect Day.

Appearance
The aliens are completely invisible, except when their helmets are detected using Tom's hat locator device.

History
When Tom refused to sell the rights to the Hat Locator to them, Dagbar sends his aliens to attack Tom. Tom manages to locate them using his hat locator.

He manages to fight off the aliens. At one point, the aliens pile up on Tom, but Tom turns up a setting on his phone that causes the aliens' helmets to explode, while the aliens that weren't affected retreated.

In the end, it was revealed that Tom was simply using a VR headset; the aliens were just a computer-generated simulation.