Dancing Monster is a 1983 game for Commodore 64 created by Peter Dekany and Denes Baan. In it, you have to shoot at designated parts of the titular monster.
You can see it and all its weirdness here.
Game provides examples of:
- Amazing Technicolor Person: The Princess is still purple after being returned to her proper form.
- Attack Its Weak Point: The top-left corner of the screen specifies a body part you must shoot. Hitting the monster anywhere else does nothing.
- Compilation Re-release: Fantasy Five, which includes this game, Buffalo Roundup, Save Me Brave Knight, Photon Reflection, and Spatial Billiards.
- Curse: The princess has two of them: to be an ugly monster, and dance forever.
- Difficulty by Acceleration: The game speed can be adjusted on the title screen. Since the whole point of the game is to hit a moving target, faster speed means a higher difficulty.
- Excuse Plot: A princess has been cursed to be a monsters that will dance for eternity, and you have to shoot at her body parts to change her back. You don't find out about it until you've shot all parts though, and even then there's little to go on.
- Forced Transformation: The monster is a transformed princess.
- Healing Factor: The monster will regenerate its lost body parts if you miss too many shots.
- Involuntary Dance: The monster is forced to dance, making it hard to hit its weak points.
- Our Monsters Are Weird: The titular monster is a purple, elephant-like monster with curved horns, a rat's tail, big ears and a trunk, and finally a long cyan tongue. Oh, and it wears pants with a belt.
- Public Domain Soundtrack: Edvard Grieg's In the Hall of the Mountain King, albeit with a different rhythm.
- Shows Damage: The monster's body parts disappear as you shoot them.