Bosses

Yellow Flowey and Twisted Flower

Enter the Yellow portal at level 200, survive YFlowey for Twisted Roots, then petal-check Twisted Flower at level 2000.

Yellow Flowey and Twisted Flower

Enter the Yellow portal at level 200, survive YFlowey for Twisted Roots, then petal-check Twisted Flower at level 2000.

Yellow Flowey and Twisted Flower are the Yellow-zone pair in the Doodle Sphere. A version 12.3 fight guide treats both as reset-0 encounters. The weapon is described as optional once your other gear is stronger.

Where to enter

Go to the Doodle Sphere lobby, pass the Underfell section, and use the Yellow portal. The portal is listed at LV 200. Below that, the portal blocks you.

YFlowey

This first fight is a survival timer, not a normal health bar. Reported patterns are heart projectiles, teardrop bursts, thorn spikes, and rotating pellets. When the timer finishes, Twisted Roots goes to your inventory.

The version 12.3 chapters split the guide into a phase-one strategy, a phase-two strategy, and a reward check. The creator's closing note says higher-level players can skip the fight if they do not need the weapon.

Twisted Flower

Twisted Flower, also called Twisted Flowey, is behind YFlowey's arena. The written gate is LV 2000 and Twisted Roots already owned. The stamina line is six petals. Hitting the petals advances phases. The clear reward is Extra Roots.

Fight Entry Clear type Reward
YFlowey LV 200, Yellow portal Survive the timer Twisted Roots
Twisted Flower LV 2000 and Twisted Roots Six-petal hitting fight Extra Roots

What to practice

Bring healing and mobility for the first fight, because damage does not end it. For Twisted Flower, bring something that can hit several petals. If you already outdamage Extra Roots with a later weapon, the 12.3 guide says you can leave the pair.

FAQ

Frequently Asked Questions

What version is listed on the Roblox page?

The Roblox games record, updated October 29, 2026, lists game version 12.4. The description says the experience is based on Undertale by Toby, names creator YaoYN, and links the YN Studio group. That record does not include an itemized patch note.

What do you need for a standard reset?

Two public descriptions disagree. A game reference says the barrier's final room accepts a reset at level 6000 with 70 TP, then wipes level and TP and applies a level booster that can stack to 34 percent. A November 2026 walkthrough instead says level 6000, 100 TP, and a gold fee, and that weapons stay. Check the barrier prompt on your save before you spend the run.

How do you redeem a code?

Open Menu at the top right, then Settings, type the code into the box labeled Code here, and press Redeem code. Current code lists say the account must be in the YN Studio group. Codes are reported as case sensitive and single-use per account.

Where do skills come from?

Community guides say you need level 6000, then spend 100 Kromer per spin at Ralsei's Skill Awakening Workshop in Castle Town. Upgrading a skill you already have is described as another 200 Kromer. The Extra capacity pass adds 18 skill-storage slots.