A Pi bond is created from a side to side overlap of two p orbitals from 2 adjacent atoms.
A single bond has one sigma bond.
A double bond has one sigma bond and one pi bond.
A triple bond has one sigma and 2 pi bonds.
Sp hybridized atoms have 2 sp orbitals and 2 p orbitals that can make 2 Pi bonds.
Sp2 hybridized atoms has 3 sp2 orbitals and 1 p orbital that can make 1 Pi bond.
Sp3 hybridized atoms have 4 sp3 orbitals and 0 p orbitals, not being able to make any Pi bonds.
To determine hybridization you can watch this video: