The 1.30 update is here: Party Dungeons! Achievements! Arcade! Lava has requested a few things remain hidden for a week or two so everyone can get first time experience. NOTE: The Web version is not yet updated. There are a few lingering issues Lava needs to fix before that happens.
Red Spore Cap
It's often misunderstood that this is just the spore's stylish hat, due to the cosmetic nature of Green Spores, but this cap is actually part of this spore's head.