Idea is nice, the cutscene is funny and explosion gives Half-Life 1 vibes.
For me the performance is abysmal. Web build straight up crashed my browser so hard that it won't open until PC restart. Windows build is extremely taxing on the CPU (Ryzen 5 4600G) causing constant unbearable lagging (not even low framerate, which is worse). Can't appreciate the experience properly because of that, won't be checking other endings. No idea what you could've done so bad in such scene, please investigate. My only guess is that you have many-many lights with shadows enabled and it spams "Reduced additional punctual light shadows resolution to make shadow maps fit" in logs