How to Beat Sans in Undertale

Imagine this: You are doing Undertale Genocide Route. You have wiped out every monster in the Underground. However. One monster stands in your way. Sans.

Sans is widely considered the hardest boss in the game Undertale, released by Toby Fox in 2015. Today, I'll show you how to beat him.

Step 1: Prepare. You will need: At least one Sea Tea. The Butts Pie that Toriel gave you at the beginning of the game. Full health. The Burnt Pan weapon you get in Hotland, so you can heal better (We'll get to why you don't want the Real Knife later). At least 4 Legendary Heroes. And last but not least, a full item bar. Step 2: First attack. Sans' first attack is intense. It gives you almost no time to prepare. Here is a GIF of it: Basically, you need to Jump immediately, go in a zig-zag through some bones, and then go in this pattern exactly: Middle, Top, Middle, Top. (if the gif doesn't load just go into editor mode and It should load there :) )

Step 2: Always attack. Whenever you attack Sans, he will dodge (this is why the Real Knife is useless, you can't actually hit him). Making him dodge is the only way to get him tired, and dodging will make him talk, which is the only way to progress the fight.

Step 3: Glowing Eye. When Sans' eye starts glowing, you're gonna have a bad time. Usually, when this happens, prepare for something big.

Step 4: Final attack. Sans' final attack is by far his most dangerous. First, he slams you against the walls while bones come out. Then, you must make a sideways oval pattern to avoid bones. Then, he will elongate the battle field, and this part is pretty much just luck. Then, you must go in a fast circle or blasters (this is the part you want the Sea Tea for).

Step 5: Special attack. Now wait until he falls asleep and move the box to the fight button, then press Z. And congrats, you beat Sans.