An average platforming game.
Gameplay - simple, just find the exit while destroying the enemies along the way. You need to find Van Helsing (whose location will be indicated by an arrow), who will give you access to new weapons, and then you need to find the exit (again indicated by an arrow).
Audio - some cool music, and good sound effects.
A few coding errors - most of the enemies you kill come back after you leave the area where they came from, and in one occasion the sounds effects don't suit the event (a raising spike in Misty Catacombs II).
Boss battles - too easy, just one or two moves to watch out for.
Also, the arrow can be confusing in some areas.
The ending was a bit average, with one long text screen, and a short animation of the castle disintegrating. Also, the scoring system's a bit strange - scores are apparently possible to the 10 millions place, and there's no high score table.
The Bottom Line
In short, this game's not bad. Despite some flaws, it is playable.