You don't need a real Playstation to play it. Just try something like Duckstation and then go to the site CDRomance to download the game.
Here, in-fact, you might need a BIOS for the Duckstation emulator, you can find it on the same site i believe.
https://cdromance.org/psx-iso/klonoa-door-to-phantomile-usa/I'm sorry, Klonoa is carried by presentation, its gameplay is good, and particularly at its best (at least, i think) in Door to Phantomile, but either way i don't think there is much to say about its gameplay, and the sequels have never really expanded much upon its ideas. And Phantasy Reverie Series butchers the presentation, even if it plays fine (although DtP not as good on PRS or Wii)
I feel like just watching a playthrough just, isn't enough...
Also, Cobra! Of course you think this is a competent remaster, everything you posted so far in this Forum since has been nothing related to Klonoa, you could very well find another place about these things, of course, these can co-exist with here, but, it doesn't feel very... right per say when nothing you have to say is about Klonoa anymore, i my self have stopped coming here all the time like i used to, because i don't have as many things to say about Klonoa, i'm just waiting for new members, because. Really, you don't care as much about Klonoa.