A popular belief within the Friday Night Funkin' fandom is that the game's main protagonist Boyfriend used to be in a relationship with Pico, the main protagonist of Pico's School and the opponent of Week 3. This gained so much traction that Tom Fulp (the creator of Pico's School) jokingly said it was "official Pico 2 canon". Programmer NinjaMuffin99 initially claimed this was just a joke, but later changed his mind and confirmed it was canon. The cutscene for the song "Stress" alludes to this, as Tankman mockingly refers to Pico as Boyfriend's "sexually ambiguous, angry little friend."

On April 1st, 2021, Tom Fulp updated Pico's School as an April Fools Day joke, with this version ending with Pico revealing to Cassandra that he and Boyfriend are dating and that everybody in the school accepts them. The next day, this version would be released as a separate game called Pico's School: Love Conquers All, being set in an alternate timeline. Given that the game portrayed Pico and Boyfriend's relationship in a positive light, some fans have taken this as a sign that Tom Fulp approves of the idea that they were at one point a couple.

Pico's School was designed on an early version of Adobe Flash, and therefore was created with significant limitations. According to developer Tom Fulp:


It wasn't until Flash 4 that variables were introduced, which according to Fulp would have made the game "easier to make."