i didn't expect much from this since it sounds silly, but it's *incredible*. I've had a ton of fun with this, more than most official Phantasy Star games i've played! (Maybe just because this is smaller and more manageable?) I've only played through as Hunter so far (both difficulties) but i intend for two more full plays, especially if i can get a group together.
The combat is really well-tuned with a *lot* of genuinely interesting strategy if you're going for ranks. The enemies are a lot more varied than i'd expect, and i was switching between all 3 different hunter weapons just based on what's the safest/best for any given situation, which is really rare to see in games in general, let alone an SRB2 mod! Special shoutouts to the final boss for being amazing too.
The one "bug" i'd like to report is the sometimes extremely loud enemy/item spawning sound since they all stack, especially when a boss dies. It's an actual health hazard to some people like me, and i know stuff like that isn't uncommon in SRB2, but since there's only one cause of it in this mod, it's worth fixing it whenever the next release is (just limiting it to one instance per frame somehow).
I don't officially support the Android version as its specific quirks make it hard to maintain, sorry.