Seems unhappy for me on a mac in chrome, screen is black with some sounds :(
index.js:474 USER WARNING: res://assets/enemy/zombie_beheadable.tscn: In external resource #5, invalid UID: uid://bj8v4k6375p2e - using text path instead: res://sound/enemy/ZombieHitBeheadable.wav
index.js:474 at: open (core/io/resource_format_binary.cpp:1086)
index.js:474 USER WARNING: res://assets/enemy/zombie_head.tscn: In external resource #5, invalid UID: uid://bj8v4k6375p2e - using text path instead: res://sound/enemy/ZombieHitBeheadable.wav
index.js:474 at: open (core/io/resource_format_binary.cpp:1086)
index.js:474 USER WARNING: res://assets/enemy/zombie_head.tscn: In external resource #6, invalid UID: uid://cu27lcra5yd42 - using text path instead: res://sound/enemy/ZombieDeathBeheadable.wav
index.js:474 at: open (core/io/resource_format_binary.cpp:1086)
index.js:474 USER WARNING: res://assets/enemy/zombie_gunner.tscn: In external resource #5, invalid UID: uid://btmq1jdm6q15k - using text path instead: res://sound/enemy/ZombieHitGunner.wav
index.js:474 at: open (core/io/resource_format_binary.cpp:1086)
index.js:474 USER WARNING: res://assets/enemy/zombie_gunner.tscn: In external resource #6, invalid UID: uid://chxeloeeqx385 - using text path instead: res://sound/enemy/ZombieDeathGunner.wav
index.js:474 at: open (core/io/resource_format_binary.cpp:1086)