The rest of the instructions are all valid n-controlled Toffolis and Hadamards, but of course mostly Toffolis since it’s replicating a classical algorithm. There is no quantum advantage, it’s just a classical algorithm written in a format compatible with a quantum computer.
Add small errors to the quantum simulator (quantum computers always have those) and all’ll break entirely - apparently (1) no error correction was used and (2) it’s just logic gates for Doom rewritten as quantum gates. No wonder the author got bored, I’d be bored too.
Of course:
Add small errors to the quantum simulator (quantum computers always have those) and all’ll break entirely - apparently (1) no error correction was used and (2) it’s just logic gates for Doom rewritten as quantum gates. No wonder the author got bored, I’d be bored too.