Monster Party is an NES game likely featuring a party-style gameplay, involving the characters from Monster franchise. The game's style could range from a platformer to an adventure, with multiplayer options possibly included. It might center around battling monsters, solving puzzles, or collecting items in a cooperative or competitive setting. The specific details of the gameplay and the type of "party" elements featured are unknown without more in-depth analysis.

Monster Party (USA)

Monster in My Pocket (Europe)