I would definitely recommend 'trying' this one somehow before shelling out $30-40 for it.
It's a pretty well done game (kinda Castlevania-ish) but it's short and BRUTALLY difficult. The controls are clumsy and your character is weak. You'll fly through the first stage but by the 2nd or 3rd stage the game bites your head off and poops in your neck.
Maybe I didn't give it enough time. I'm pretty good at old-school video games and still couldn't play this for more than 15 minutes without getting frustrated.
EDIT: And now I have the song stuck in my head. That's just great.