I did this run primarily to mitigate several poorly optimized sections in the last run. For a run performed six months after my last one, it shows how poorly the last run was optimized.

Early game was faster (then again, as far as I know that segment is mostly RNG with only tiny execution-dependent sections) by a wide margin. Once we got to graveyard, an idea popped in my head to where we would depend on scurvy (incapacitates a foe temporarily) RNG and cannon spam for the last couple of boss fights. Mermaid, Bradley 4, and Domin were easily cheesed in this matter.

Sub 2:30 is still possible; I do not know what exactly happened such that I lost several minutes coming up to Mermaid.

At least Mermaid is no longer a terrible run killer!