It's Hotline Doom.
Alpha demo: https://www.alphabetagamer.com/brutal-mood-alpha-demo/
Site: http://fasharcade.com
Twitter: https://twitter.com/fasharcade
Twitch:
Music by Xurious: https://www.youtube.com/channel/UC897ctV7MkQTVQ1db1hAQNQ
▶️ DTube
▶️ IPFS