Memory Game:

E & E Match (2 Button 1st Row & 4 Button 3rd Row)
F & C (F = 4th Button & 1st Row) (C = 3rd Button 3rd Row)
B & D (B = 3RD Button 1st Row) (D = 1st Button 4th Row)
C & D (C = 1st Button 1st Row) (D = 3rd Button 2nd Row)
A & G (A = 1st Button 2nd Row) (G = 3RD Button 4th Row)
B & H (B = 2nd Button 3rd Row) (H = 4th Button 4th Row)
F & A (F = 2nd Button 4th Row) (A = 4th Button 2nd Row)
G & H (G = 1st Button 3rd Row) (H = 2nd Button 2nd Row)