This game relies solely on one innovation (read: gimmick).
Okay, you ready?
"Hey! Let's make a game where, when you press left or right, instead of the character turning, THE SCREEN WILL ROTATE INSTEAD!"
Yep, that's it. It's every bit as bad as it sounds. Every time you try to turn, the dungeon around you will make an extremely quick and jerky turn. Expect to get lost really often, since absolutely every room looks the same, and often you won't see a switch on the wall because you're turned so it's obscured. Expect to die really often since enemies are really fast and will sneak up behind you and kill you while you're confusedly spinning the room around. Actually, just expect to get epilepsy in sixty seconds from the jerkiness. Ugh. Some may remember Nintendo Power kept hyping it when it came out in a desperate effort to sell a few copies; hopefully no one actually fell for it.