YABTS: Yet Another Bad Time Simulator, Videogaming Wiki

YABTS: Yet Another Bad Time Simulator is a fangame of Undertale released on GameJolt on 13 March 2017 that recreates several battles from the game Undertale (as well as two original fights) in a pseudo-3D engine. Chara YABTS contains five bosses, as well as a fight against Sans and W.D. Gaster simultaneously. An additional hidden fight can be accessed by pressing the P key on the Selection Menu, which pits the player against all five bosses simultaneously. Sans Doctor W.D. Gaster Double the Trou

Yet Another Bad Time Simulator [ZweiHander] : ZweiHander : Free Download, Borrow, and Streaming : Internet Archive

Yet Another Bad Time Simulator [ZweiHander] : ZweiHander : Free Download, Borrow, and Streaming : Internet Archive

Games like YABTS: Yet Another Bad Time Simulator • Games similar to YABTS: Yet Another Bad Time Simulator • RAWG

Sans, Videogaming Wiki

Undyne, Videogaming Wiki

Undertale Bad Time Simulator - Colaboratory