For this you need to complete 10 levels this can be done easily without a walkthrough but for those that need it here are the solutions for the first 10 levels
R= Right
L= Left
U= Up
D= Down
A1) LLLUUURRR
A2) LLLUUURURRD
A3) RRRRUUUULLLL
A4) RURRR
A5) DLDRRDRULDRRUULU
A6) ULDRRULUUU
A7) RULLDRUUURRRDLURDDDLU
A8) UUUURLLRUR
A9) LLRDDRDLULDRUUULRRLUR
A10) RDLDLDRD
If there are any problems or mistakes please message me and I will edit it