scramble · verb /ˈskræm.bəl/
scramble down/out/up, etc.
C2 to move or climb quickly but with difficulty, often using your hands
Dictionary example:
We scrambled up the hill.
Learner example:
Piggy and [an]other few boys scramble up to the Castle Rock because Piggy wants to have his glasses back. (Certificate of Proficiency in English; C2; Italian)