They have MANPADS (Russian, Iranian, Chinese), and a few Repurposed R-27 (Soviet Sidewinder copy) missiles ripped off some MiGs that weren't airworthy following the blockade and bombing by Saudi forces.

Most of their static radar systems were either destroyed or not operational for air defence when they were seized from the Yemeni army. A lot of them were repurposed as artillery missiles.

They've taken down a bunch of reaper drones (as others have said) but also damaged/destroyed at least half a dozen F-16/F-15 fighters using the ground-launched R-27s in ambushes.