C?p d? "Kh�" l� b?c th? th�ch th? ba trong h? th?ng ph�n lo?i d? kh� c?a Geometry Dash, n?m ? nh�m th? tu c?a b?ng x?p h?ng. C�c m�n choi ? m?c n�y du?c d�nh gi� t? 4 d?n 5 sao, mang d?n m?c d? th? th�ch v?a ph?i, kh�ng qu� d? d�ng nhung cung kh�ng qu� g�y th?t v?ng. C?u tr�c c?a ch�ng tinh vi hon so v?i c?p d? Trung B�nh, nhung chua d?t d?n d? ph?c t?p c?a m?c R?t Kh� (Harder). Ngu?i choi s? ph?i d?i m?t v?i c�c c?m gai nh?n ba li�n ti?p c�ng nh?ng b? c?c chu?ng ng?i v?t d�i h?i s? ph?n x? t?t hon.

T�nh d?n hi?n t?i, c?ng d?ng c� t?ng c?ng 5 c?p d? Hard ch�nh th?c. Trong d� bao g?m 2 m�n t? b?n g?c, 2 m�n d?n t? c�c ph?n ngo?i truy?n (spin-off) v� 1 c?p d? d?c bi?t mang t�n "The Challenge".

C�c c?p d? Kh� n?i b?t:

  • Base after Base
  • Can't Let Go
  • Airborne Robots
  • Nock Em