Reminds me of Darius Twin kind of, a decent shmup but only really remarkable for its music. It's also quite easy except when the stage design is cheap and bad, like in Haides for example. Bosses are amusingly the easiest part, even the final one takes like 10 seconds to destroy. It's by all means a BETTER game than II, but I don't think it interests me nearly as much, and above both I'd definitely rather play IV.