>>715617673
>4.5 (GBA) only has one version to play and has a translation patch

Something to add is that if you don't jive with the gameplay style, which has you indirectly instructing your navi instead of assuming direct control (like the rest of the series), there's a gameplay patch that makes it play like the main series.
That's how I played it years back during lockdown, and I had a good time.
https://forums.therockmanexezone.com/rockman-exe-4-5-real-battle-network-gameplay-patch-t5461.html