In the vending machine where Summer gets her Wolverine claws, Cyclops' visor can be seen on the middle shelf, as well as Thor's Hammer and Magneto's helmet on the bottom shelf.
Feral Jerry/Jerry Prime mentions that he and his family "spent a long time in that ice", referring to the last time they were seen, in The Rickshank Rickdemption (2017), where the Citadel-Ricks used freeze-rays on them; Beth Prime got sick and died afterwards, and Summer Prime "didn't thaw right". The Rick and Morty Comic Series, Issue 45, section "Look Who's Cronenberging Now" continues the story of the family after Rickshank Redemption, but is not considered canon because the narrative doesn't match the brief description that Jerry provides in Solaricks.
Summer's Wolverine claws design is inspired in the mutant X-23, a female clone of Logan.
This episode was dedicated to Mike Mendel.