A few of these, mostly the softlocks, have been fixed already in 1.0.4.1/1.0.4.2, but the rest will be fixed in the next patch! As for the rocks, I was working on expanding the map for 1.1.0 & 1.2 since I worked on other content at the same time as the development for 1.0.4, so I put the rocks there as temporary blockades.
I'm not sure how to use JOIplay, as I don't officially support it, but some people in the Discord got it working by messing with the settings for plugins. I can't provide any help myself though, since I haven't used it. Sorry!
I plan on keeping them in a pixelated style for the time being, just to better match the sprites of the enemies. I might scale them up at some point to be higher resolution, though.
I do plan on adding one! I have the maps organized into a map already, it's just a matter of stylizing it to fit the game world in a manner I like. You can expect one in 1.1 or 1.2!
If you're referring to it looking different from previews posted on other websites this is because this is a much older version of the game, before textures were redone/improved for the upcoming release :P
Popping is a core mechanic of the game, and as for a mobile port I think you can run emulators on android devices to play it! As for an official port, unfortunately not.
