Aleksei Kulaev on Twitter: "seems ps4's ps2 emu is better than ps3's one, @notzecoxao asked to test the game that doesn't work on ps3 (Klonoa 2), and it works on ps4 :)
Klonoa 2: Lunatea's Veil (PS2) Playthrough / Longplay - No Commentary (1080p, original console) - YouTube
KLONOA Phantasy Reverie Series Trailer Compares Classic and Remastered Visuals
Klonoa 2: Dream Champ Tournament - (GBA) Game Boy Advance – J&L Video Games New York City
Klonoa: Door to Phantomile (Game) - Giant Bomb
Amazon.com: Klonoa 2: Lunatea's Veil : Playstation 2: Video Games
Klonoa 2: Lunatea's Veil sony Playstation 2 2001 PS2 - Etsy New Zealand