do you wanna have a bad time? 'cause if you visit this page... you are REALLY not going to like what happens next.

Play Bad Time Simulator and discover multiple Sans fight variants, Bad Time Trio battles, and all major boss fights from Undertale and Deltarune—including Jevil, Undyne, Papyrus, Mettaton EX, Berdly, …

Bad Time Simulator requires your agility and control skills to beat Sans - the final boss. You need to keep your heart from being hurt by enemy attacks.

Bad Time Simulator is a faithful fan-made recreation of the legendary Sans boss fight from Undertale. This challenging bullet-hell experience puts your dodging skills to the ultimate test against the …

Bad Time Simulator is an exciting fan-made game that recreates the intense battle against Sans from the popular game Undertale. This simulator captures the essence of the original fight with authentic …

Enter the challenging world of Bad Time Simulator, the ultimate online hub for intense Sans battles and diverse Undertale boss fight experiences! Test your skills against the infamous Sans from Undertale …

Play Bad Time Simulator, a free online bullet hell game! Dodge deadly attacks, switch soul modes, and survive relentless challenges. Test your skills now!

Try upgrading your browser to the latest version. What is a browser?

Play Bad Time Simulator (Sans Fight) online – experience the ultimate Undertale fan challenge against Sans. No download needed. Practice your skills in this intense boss battle simulator.

Experience the legendary Sans fight from Undertale in this bullet-hell game. Dodge bone attacks and Gaster Blasters while testing your reflexes. Ready to have a bad time? bad-time-simulator.com is …