Can this be played on actual PS1 hardware? It's always cool to see a game that not only pays homage to a console but can actually be played on it. It's not necessary, though.
No it's made in Unity : ) Also PS1 seems quite impossible to make games for nowadays. The amount of homebrew ps1 3D games can probably be counted on 1 hand. I looked into it and I only found 1 or 2 games. But Alisa runs on Windows XP so that's a tiny bit "retro" already XD