Two main ways fortnite keeps the game "fresh" is adding new "skins" (player character appearance) and "emotes" (actions). They licensed the adventure time and spongebob characters as "skins" which players can earn or purchase.

The adventure time characters appear to be doing a basic "hug emote", which is one of several interactive emotes that, if one player does it, another player can reciprocate by approaching and engaging the emote. It looks like they're making out because this emote was designed for basic skins, not specific to these skins.

~~I'm not sure if that's just spongebob's face or not, but I assume it's an emote exclusively designed for that skin~~ (see Carl's comment reply below)

Edit: The primary game mechanic is third person shooter, though they've got several popular roleplay style game modes/options where folks just fuck around. It's become kind of like roblox, in which it's now a platform for game makers to make their own game and publish it for others to play

[–] XeroxCool@lemmy.world 7 points 1 month ago (1 children)

Adding that there's also many cartoon skins that use cel shading, which I assume is part of why this looks so weird if you're not up to date at all. Peter Griffin might be the earliest I remember, but there's dozens now. They had a whole Simpsons season recently.

[–] ThoGot@feddit.org 3 points 1 month ago (1 children)

I played a bit when Fortnite first introduced their Battle Royale mode and now it seems to be a completely different game

[–] Thesilverpig@lemmy.ml 3 points 1 month ago

I remember when fortnight was an over monitized survival game with middling reviews and a thiicc character you could choose from.

[–] CanadianCarl@sh.itjust.works 5 points 1 month ago* (last edited 1 month ago) (1 children)

That is the new spongebob sidekick.

Forgot to mention, the @ is also a reference to this recent fortnite controversy. https://youtube.com/watch?v=XTpcrHb6NQM

[–] XeroxCool@lemmy.world 6 points 1 month ago (1 children)

That makes sense. There's some basic requirement for height and width to make you a standard shooting target for which SpongeBob would not work.

[–] TherapyGary@lemmy.blahaj.zone 5 points 1 month ago

Yeah I didn't even consider how small he was 😅