Multiplayer shoot em up games for PlayStation 4 with local/couch support

After Wave: Downfall

Players: 2 local, 0 online

Resogun

Players: 2 local, 2 online

Sky Force Anniversary

Players: 2 local, 0 online

Sky Force Reloaded

Players: 2 local, 0 online

Mercenary Kings

Players: 4 local, 4 online

Jamestown

Players: 4 local, 0 online

In Space We Brawl

Players: 2 local, 0 online

Shutshimi

Players: 4 local, 0 online

Score Rush Extended

Players: 4 local, 0 online

Xenoraid

Players: 4 local, 0 online

Raiden V: Director's Cut

Players: 2 local, 0 online

Dariusburst: Chronicle Saviours

Players: 4 local, 0 online

Stardust Galaxy Warriors: Stellar Climax

Players: 4 local, 0 online

Ghost Blade HD

Players: 2 local, 0 online

Sine Mora EX

Players: 2 local, 0 online

Omega Fighter

Players: 2 local, 0 online

Koutetsu Yousai Strahl

Players: 2 local, 0 online

Last Resort

Players: 2 local, 0 online

CRYPTARK

Players: 2 local, 0 online

Aqua Kitty - Milk Mine Defender

Players: 2 local, 0 online

Aero Fighters 2

Players: 2 local, 0 online

Shock Troopers

Players: 2 local, 0 online

Zed Blade

Players: 2 local, 0 online

Strikers 1945 Plus

Players: 2 local, 0 online

A-JAX

Players: 2 local, 0 online