> "I used Claude to create an approximate version of the game loop in JavaScript based on the original DOOM source"

This is the real horror here, Uncanny-Valley gameplay Doom. It's like those Doom maps where people tried to recreate the game levels from memory, but still made a few mistakes and got some details wrong. This is like that, but for the gameplay rather than the level layouts. It's different enough to be wrong.

We have Green Armor that sets your armor to 200%. Health Bonuses that reset your health to 100% if you exceeded that number, too bad if you recently collected a Soul Sphere. Switch-activated doors that are supposed to stay open, but instead automatically close, but then the secret wall unexpectedly activates like a manual door.