How to get hidden badge : Alone, A The End of the world! (Survival 20wave on moblie)

Hello everyone, this is the first video I’m uploading on YouTube.
I’m not very good at speaking, so… I want to bring back the feeling of old content.
I hope you enjoy this video, and please share it to give me more motivation.
Thank you, everyone!

Song: Axol x Alex Skrindo - You [NCS Release]
Music provided by NoCopyrightSounds
Free Download/Stream: ncs.io/You
Watch:    • Axol x Alex Skrindo - You | Electro House ...  
Song: Elektronomia - Energy [NCS Release]
Music provided by NoCopyrightSounds
Free Download/Stream: ncs.io/energy
Watch:    • Elektronomia - Energy | Progressive House ...  
Track: Diamond Eyes - Everything [NCS Release]
Music provided by NoCopyrightSounds.
Watch:    • Diamond Eyes - Everyth...  
Free Download / Stream: ncs.io/Everythi...
Track: Sub Urban - Cradles [NCS Release]
Music provided by NoCopyrightSounds.
Watch:    • Sub Urban - Cradles | ...  
Free Download / Stream: ncs.io/CradlesYO
Track: Cartoon, Jéja - Why We Lose (feat. Coleman Trapp) [NCS Release]
Music provided by NoCopyrightSounds.
Watch:    • Cartoon, Jéja - Why We...  
Free Download / Stream: ncs.io/whywelose