There is at least one transition that's broken in the jam version (duplicated it and forgot to change the path ID to the right door, whoops) that one's fixed at least, I think they're all good now for the next update but I'll be sure to triple check just in case!
Fair shout on the fire item, for me personally it has enough leeway to allow for a slight amount of mistakes but not long enough where it doesn't feel like a satisfying challenge.
It actually used to be tighter! (secretly each of those 'seconds' is actually 1.1 seconds, we extended them to be more lenient while sticking to the single digit partially because it felt cooler and also so we'd be asking for less sprites to display on the character for NES constraints.
Thanks for the feedback!