There, A Flowey - Grim

Description: Gundertale is an Alternate Universe of Undertale (AU) and in this AU its based after frisk set peace in the pacifist timeline and humans and monsters lived in harmony. Grim, Darryl, and Jaiden are siblings and Grim plays the role as sans in this AU, Darryl plays the role as papyrus and Jaiden plays a role that would be chara mixed with toriel. You are the player and drift in a boat to the island that they live on, Flowey greets you and tells you how things work here. He tries to kill you but stops, and thinks it would be more fun if he tagged along to help you fight and survive. In Genocide he heals you every 2 turns and is more aggressive. You encounter the guide and her name is Abby; she plays the role of Toriel. Then in the waterfall you meet Jessica which is the Head of the Royal Guard. When you're near the science labs you meet the Royal Scientist, Rivers, who asks you what you are doing here with a disgusted face. He guides you through the lab and through the castle up until you go to the front gate where you face Jessica and the Royal Guard and run through the castle away from any traps or danger. You head to the palace and see Judgement hall where Grim is. In Genocide you fight Grim and then head to the palace where you fight The King. Then flowey shows up and gives a speech saying “Wowie, It was fun to tag along but now it's time to die, I missed my chance to kill you at the beginning but I was pathetic back then. I now have studied the way you fight and now I can kill you. Take your soul and finally become… hmm? You need 6 more souls to become god? Teehee, the palace has been hiding this but I have all 6 souls I need. To. Kill. You. Have fun dying -Maniacal Laughter- You begin battle and he is just normal and uses one soul at a time to try to kill you. He gets tired and you defeat him and live happily ever after. In genocide he uses all 6 at once and turns into Omega Flowey. You kill him easily and he knew that he was too weak. He dies then you meet Chara and fight her. You always lose and then the game ends. The End.