You can use Stage Skip Bug in also 1.50a, but it takes a bit longer than 1.00, so I ran with 1.00.

• ver 1.00
• Difficulty: Easy
• Stage Skip Bug: https://wikiwiki.jp/thk/bug/%E8%8A%B1#l2a3b0fb
• Change Default Health from 5.0 to 1.0: https://wikiwiki.jp/thk/bug/%E8%8A%B1#y64b75d2

Replay: https://github.com/pingval/Speedrun/raw/master/TH09/th9_ud%40r01.rpy

YouTube:

old VOD link: https://www.twitch.tv/videos/925152764