Other Places.

Now, it's time for mid-end game stuff. Beginning with the Boss Rush at level 100, which is super easy. But then you have the Ultra Boss Rush at level 2500, where you fight the AU bosses, The final boss is X Gaster

First of all, the Infinite Battle Mode, where you can fight an Infinite Undyne the Undying at level 3000 here you get 1 BP (battle point) for every kill, and then you can fight Infinite Sans at 100 BP, where you get 3 BP per kill. You can get weapons such as the Tesla Knife for 25 BP, Epic Bone for 100BP, and a hardcore knife for 500BP. Then, you have Hardcore mode, which is at level 4200, where you fight much harder versions of previous bosses and get massive amounts of gold. There, you can get the switch bone for 30M gold, Bob sword for 50M gold, Hate knife for 100M gold, and Gauntlet (yes, infinity gauntlet) for 300M gold. Please note that when you spend BP, it doesn't decrease, while gold does decrease. If you jump on temmie, and jump again, you go into a secret boss, hardcore XGaster, which has a health bar containing 100 MILLION HP. Lastly, you have a final room at level 6000+, where you fight a boss, when you kill him, you reset.