This week's episode of "Superstore" season 3 brought out the Halloween costumes for a frightening day at Cloud 9. Employees were shocked to see Creepy Sal's dead body in the drywall after renovations were being completed following the devastating hurricane. While Glenn (Mark McKinney) tried his best (and failed at) diverting shoppers' attention to possibly other things than the corpse in the store, Amy (America Ferrera) was too busy playing with the dating app on Jonah's (Ben Feldman) phone. In fact, she was so engrossed that she accidentally swiped right on Kelly (Kelly Stables), causing her to think that Jonah is into her.

The gag goes on for a while until Jonah and Kelly figure it out (possible with the help of Colton Dunn's Garrett), and Kelly acts all psychotic and stabs Jonah with a fake knife—fake blood included. It is after, all, Halloween.

Cast costumes

This year's Halloween episode of "Superstore" season 3 showed the Cloud 9 crew once again donning their costumes for the holiday. Cheyenne was characteristically a unicorn, complete with special effects makeup, something that she is apparently very talented in. Amy came as Selena Quintanilla, and America Ferrera even took to Instagram to share a side-by-side snapshot of the singer and herself donning the costume. Meanwhile, Jonah unsurprisingly took on a rather serious Halloween costume.

Last year, he came as Brexit, and this year, he came as the disappearance of bees.

Amy gets jealous

In this week's episode of "Superstore" season 3, Amy blatantly shows her jealous side as she tries to keep Jonah and Kelly apart.

She even plotted to change their work schedules so that they would not talk to each other. But her plan failed, and by the end of the episode, Kelly thanked Amy for accidentally swiping right on her profile because it helped break the ice between herself and Jonah. What the episode did fail to show is the motivations behind Amy's crazed obsession over keeping Jonah away from Kelly.

Would it be possible that she still likes Jonah? It seems that the pair has moved on from the awkward post-kiss stage and have become comfortable with each other, but none of them have made the move to date each other, save for Amy jokingly asking Jonah if he wanted to have sex.

Next week on 'Superstore'

On next week's "Superstore" season 3, Amy and Jonah team up to come up with a better alternative to Cloud 9's mediocre health insurance plan. According to SpoilerTV, Glenn asks for Dina's help to seek medical help for his embarrassing health issue. The NBC comedy airs every Thursday at 8 p.m.