All is good, and now all that's left is to walk through the Level Goal and watch the victory cutscene.
Hang on, what's —
What? Did you just die? During the victory cutscene? And you have to do all of that again?
Yes, that's right, you just fell for a Kaizo Trap, a tremendously annoying case of The Computer Is a Cheating Bastard where a Death Trap is placed in a spot where you would normally have your guard down.

Talk about kaizo. Kinda frustrating, while at the same time clever...I'll flip a coin.........heads. Thumb's up.