I'm a few levels and and the updates are awesome! Now there's a reason to use the bomb since you're rationing weapons now. My son immediately said it was much easier to see what has going on with the terrain. Levels are more varied in design with new colors. There are some new enemies. They can shoot what look like bombs maybe that are a different color. There's still a lot to take in.
I do have a question. Is the ever-present feedback sound on purpose or is that a bug? It's kind of jarring. I got used to it after a while but it took some doing. I thought the web emulator was glitching so I tried it in FCEUX, then Mesen, then flash cart and it was still there.
I haven't tried multiplayer yet but we'll probably get to that this weekend. It's very very cool to see you updated this today!🤘