This simple tutorial will allow you to easily solve a mini-cube with some practice! Even though the 2x2 looks very easy, it is actually a lot harder than it looks if you don't know how to solve it.
If you can solve a 3x3 intermediately, then you should recognize the three algorithms used in this video as:
Sune (R U R' U) R U2 R'
T-Perm (R U R' U') R' F (R2 U' R') U' (R U R' F')
Y-Perm (F R U' R' U') (R U R' F') (R U R' U') (R' F R F')
Thank you for watching!