So I just played this game again for the first time in ages, and I noticed an "omake" section in the options menu. It turns out most of it is showing fan art of the series that the company received, and they had one of the characters comment on all of it and thank each artist. I've never seen a game do that before.

Gao is spot on here, but I would also add that several levels are pretty much straight corridors with enemies running at you from both sides a la Rush 'n Attack. Not exactly satisfying gameplay for a later PCE release and I actually prefer the prequel to this one.

I have mixed feelings on this game. One one hand, there's a lot of variety, it plays pretty well, and it's definitely one of the best looking games on the system, particularly considering that it's not even a Super CD game. The problem is that it feels like it's half a game, if that. It's only about 30 minutes long, and it stops right when the game feels like it's getting good. There are signs that they wanted to do more. For instance, there's a wall jump mechanic, but there's a grand total of one time where you ever use it. Seems like an odd thing to put in if you're barely going to use it. It's a shame that it's so incomplete, because if they had more time, this could easily have been the PC Engine's great platformer.