I don't think there's much value in playing this game today tbh. As an rpg, it's extremely stripped down and doesn't have much going on¹, and as a tcg is... well, early pokemon tcg, as in you either make a casual deck and resign yourself to every game being decided by irritating coinflips, or build Haymakers/Rain Dance and just steamroll every NPC.
That said, if you were a kid in the early-to-mid 00s the collectable/perpetual nature of this game sort of ruled.
Anyhow, play Card City Nights.
¹That's actually a bit of clever design tho. I've tried playing some of the Nintendo DS Yu Gi Oh games and immediately gave up on them cause 3/4th of the game was walking around and talking to people, and it mostly felt like it got in the way of the TCGing. Pokemon TCG GB actually hits a good sweet spot of rpg-ness, where you still get the pleasant progression system and some flavour, but it never just stops to a halt asking you to do rpg things.
That said, if you were a kid in the early-to-mid 00s the collectable/perpetual nature of this game sort of ruled.
Anyhow, play Card City Nights.
¹That's actually a bit of clever design tho. I've tried playing some of the Nintendo DS Yu Gi Oh games and immediately gave up on them cause 3/4th of the game was walking around and talking to people, and it mostly felt like it got in the way of the TCGing. Pokemon TCG GB actually hits a good sweet spot of rpg-ness, where you still get the pleasant progression system and some flavour, but it never just stops to a halt asking you to do rpg things.