Ulala: Idle Adventure is probably THE most addictive idle RPG for Android. Bloodline shackles restricted Giant Kemoyin Serpents to the upper limit of their base bloodline Ulala: Idle Adventure is an Adventure, RPG, and Single-player video game for Android and iOS developed by X. (Saturday Night Live, 30 Rock, Rick, and Morty) Feed on humans, consume nutrients and find rare shark loot to evolve past what nature intended. I swap out violent for polymorph frog often, the extra stun can save you, also switch in pharma frog if I need heals. This slot doesn’t even show up as locked before level 51 it just doesn’t show up at all, but once you unlock the Toy Store, go back to your skills and you’ll see it.