As outlined on the trivia page, the right-most spider will adapt to a player having difficulty getting past the spider room.
To extend this behaviour to the other two spiders, the jump at 37733 should be removed:
As the value at 34223 controls this behaviour, it too can be manipulated. The higher the value in this location is, the longer the pause between
subsequent attacks by a spider (normally only the right-most spider, unless the above POKE is also used):
POKE 34223,x (where larger x results in a longer pause between attacks)
The routine at 55421 handles the increase in velocity for a character's jump. It is capped at 7 by the instruction at 55426. This can be increased
to 15, allowing significantly higher jumps for both Drutt and Berk:
Changing the cap to 15 is sufficient to allow Berk and Drutt to jump approximately 5 screens' worth of vertical distance. This allows them to jump as
high as level 1's entry door room (two screens above the Trap Door room) from the room at the bottom of the Trap Door shaft.
Quicker recovery after fall
When Berk falls, the check at 48958 determines whether Berk can recover instantly, or whether he is to be stunned. The conditional jump at 48962
will make Berk enter the stunned state if bit 3 of his velocity factor is set. This conditional jump can be removed, resulting in Berk being able to
fall any distance and recover instantly: