Welcome to Undertale: The Ultimate Key!

Undertale: The Ultimate Key is a game that is inspired by Undertale: Don't Forget and Undertale: Multiverse. Choose a Vessel, Soul, and Chat color.

Of course, the Project has a Website! The link to it is here.

Features

• Vesselry (Used to upgrade your vessel)
• New Enemies
• PVP
• Easter Eggs to find
• Temmie's Vessel Shop ((This is found in your Cell option in the Menu.) You get the first 3 categories of vessels, but not the Others category. You can buy the vessels in it through the Temmie's Vessel Shop.)
• Cutscenes
• The Short Overworld Town ((This is found in your Cell option in the Menu.) A short Town of connected parts of the Overworld where you can get G from taking care of main Undertale Cast. Creating Buildings for taking care of the Main cast of the main Undertale Cast multiplies the G you earn unless it is a rare building. You can get more Buildings to create by increasing your LV.)
• Hazards in the Overworld
• New Areas to the Overworld
• More