Help! I don't know the name of the FX

Resources & Knowledge
#1

Hi guys, first time using RealTimeVFX and a just started learning houdini for 5 months

just wondering if anyone know the name of VFX used to achieved this look. I am doing this for a school final project, any helps are appreciated

Thank you

Link: https://www.youtube.com/watch?v=RDuwei4RULE