Been a while since I've played spelunky, is the tunnel man the shortcut to later levels? Because it exists in Shiten the Wanderer and it's definitely still a roguelike. There are small deviations, like this, unlocking companions and keeping a storage room with limited access, but everything else is pretty straightforward roguelike.

That's the thing in the end, no clear definition exists. The "Berlin interpretation" is just a bunch of guidelines, and even the most "roguelikes" of roguelikes deviate a bit from it (stuff like "no modes" is even broken by 3 out of 5 games the interpretation considers "canon").

Personally I consider real time to be a bit of a stretch, but yeah, stuff like spelunky or crypt of the necrodancer blur the line.

Not Hades and Dead Cells though. I love them, but they feel way too different to play for me to consider them the same genre.