One of my absolute favorite games despite the many frustrating moments. I hope you‘ll stick with it. The fun increases significantly once you get the hang of it.
I love how scary the tanks are in Hell Let Loose because most classes cannot really do anything against them and since they’re usually manned by 3 people, they almost always spot you when they’re facing your direction. Its great
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.