Sans Builder

Bad Time Builder is an unfinished boss.

Bad Time Builder (Sans Builder) May or may not be a reference to SandUnderTable, A content creator for TCC.

Trivia
Bad Time Builder (Sans Builder) has two Youtube videos showcasing his debut.

https://www.youtube.com/watch?v=6HRTmsxZu1g

https://www.youtube.com/watch?v=3ovBM4qyHY8