Omega Flowey

Omega Flowey / Photoshop Flowey is a final boss of Undertale neutral route. A giantic monstrosity, capable of many destructive things.
So here’s him in Rivals of Aether.

Flowey can freely move around the map, even through solid blocks.
Uses health bar.
Has knockback immunity.

Flowey will throw ninja stars out of his upper eyes.

Flowey releases a lot of spikey vines towards his enemy.

Flowey grows a flytrap, that attracts giant damaging flies.

When Flowey laughs, he regenerates his health.

Flowey grows a lot of little hands that shoot thier fingers.

Flowey releases spiky plant balls with mouths, that bouce around the screen and damage the opponent.

Flowey shoots a large energy beam out of his "mouth".

Flowey summons explosive missiles from the sky.

Flowey activates strong flamethrower from his body.

Flowey saves his current "progress" in the battle.
Pressing SHIELD again will load the save.
You can fast-travel, confuse your enemy or even cheat your death using this move.

Credits to Sumin/Gramsen for the original character/sprites.