Inspired by the Contingency Contract event of Arknights. You can play the battle of Undyne the Undying or Sans with many different tags, such as Lower HP, Higher Speed, Inexhaustible Consumables, Reversed Control and so on. You can either choose easy tags to practice your skills, or choose hard ones to challenge yourselves. I'm really curious if there's anyone who can survive the battle with all the highest ranked tags. After applying this mod and loading any save file, press the Tab key on top left corner of the keyboard to activate menu. There are two battles to choose from, each with its own specific tags. Your current LV and Inventory of this save does not matter, but if you don't want to mess with your original saves, I highly suggest you to backup your file0 first. (Look for it in C:\Users\[Your User Name]\AppData\Local\UNDERTALE)

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