I got kinda caught up in Dig Dig Dino but to be honest, I‘m lagging behind in giving the newer games a fair shot since the release of the Switch 2 has distracted me slightly
There‘s also an excellent Gameboy Color romhack of Dr Mario that supports multiplayer. Recently tried that out with my girlfriend and it was a lot of fun.
Edit: this is it for anyone interested. Looks like even the original version for the Gameboy supports multiplayer.