That One Level: Like That One Boss, there are quite a few. World 4 of Braid, Block 3-3 of Super Castlevania IV and Stage 6-2 from Metal Storm stand out.
- In the Mine Craft set, he gets lost in a maze-like cavern for about 20 minutes, slowly losing his sanity, and ends up dubbing the place "Caverns of Despair".
- 7-20 4 Letter Word. This one level was so hard that not only did he spend rougly 1 hour on it, OTG got so depressed due to his constant failing that he claims to have seen a white light..
- OTG himself considers it to be his number one nemesis.
Overthegun: "It's that fuckin' TV Tropes page. And it's got all the real fuckin' nemesi... of, uhm, HTSF. This stage... is number one. Seriously, it's number one!"