It's fun and I like the idea of a puzzle shmup, but you're given no ideas or hints on what you're supposed to do (and in certain levels, you aren't supposed to do certain things) and one of the core objectives even goes against things in the original game. It has no real music so to speak of until the final stage but that final stage track is good, and the bosses are fun.

The nazo can be a bit frustrating but the Super Xevious is a blast

Tip: If you get to the final boss, pause and unpause the game so you can have the stage music back instead. You're welcome.