Undertale

Cory and Frisk have finally arrived at the Core. They drop into MTT Resort and have dinner with their friend Sans. He tells a story about knock knock jokes and his mission to protect the two during their journey. He leaves them and tells them good luck.

Cory and Frisk continue exploring the MTT Resort and discover some strange characters including Bratty and Catty and the infamous Burgerpants. They chat with the workers for a while before deciding they'd like to head back and make peace with Undyne.

Cory and Frisk decide to go back to Waterfall and visit Undyne to make amends. They run into Papyrus before heading inside who attempts breaking the ice, but in fact only breaks the window. Undyne, Cory and Frisk begin their hangout.

Cory and Frisk try to deliver Undyne's letter. Things go off the rails and Alphys thinks Cory has asked her on a date. She gets in her black dress and brings them to her favorite hang out spot--the dump! But oh no--Undyne is here looking for Alphys!

Cory and Frisk enter the Core and encounter some strange shadows. Alphys has a lot of trouble navigating them as her map doesn't match the structure. Cory and Frisk are left with bad advise in a room with more monsters than ever.

Cory and Frisk find themselves battling with Mettaton Ex! Alphys has been locked out and can no longer assist, leaving the three to perform in a live stage performance. The stakes are higher than ever...will Cory and Frisk escape, or face death by glamour?

Before going up the final elevator, Cory and Frisk find out that Alphys has been lying to them. and they will in fact have to kill Asgore in order to cross the barrier. They meet a wide variety of monsters who tell them the story of Asriel.

Cory and Frisk receive their pacifist and neutral judgements from Sans before moving on to finding some coffins. They enter the throne room and meet Asgore Dreemurr who tells them to meet in the next room. Cory emphasizes that he'll fight Asgore, and if he loses...

Cory and Frisk finally battle Asgore Dreemurr. Right when things begin looking up, Flowey shows up and ruins everything. The battle with Omega Flowey begins and Cory and Frisk have to fight to survive. We have an ending.

Cory and Frisk receive a phone call from Sans, Papyrus, and Undyne before speaking with Flowey. They can go back and become better friends with Alphys. They decide to reset, heading back to Hotlands. They arrive at Alphys' lab and find a troubling note...

Cory and Frisk continue searching through the true lab and run into many Amalgamates including Endogeny, Snowdrake's Mother, Reaperbird, and Lemon Bread. They find some home recordings of Asgore and Toriel before continuing to turn on the power.

Cory and Frisk finally arrive at the barrier. Asgore awaits and prepares to fight. Suddenly, he is stopped by Toriel! She shuns Asgore and protects the two. Undyne, Alphys, Papyrus and Sans all show up as well. Everyone is rejoiced at meeting one another.

Cory and Frisk fight Asriel Dreemurr in a grand finale. It all comes down to this...