Oh, darn, hit it with an attack? I thought I tried that, but I guess I must've kept missing it. I'll give it another go.
Yeah you need to attack the red light several times to destroy the wall, it blinks when the hit confirms. The flame weapon in particular makes short work of that boss if you manage to destroy the turrets without losing it.
Got it! I must say, it was worth it to revisit the game and beat it!
Glad to see if you managed to reach the end and enjoy it, thanks for playing.