Multiple playable characters, each with unique skills and abilities, enabling players to approach puzzles and challenges in different ways. For example, the review mentions that certain puzzle solutions and endings are only accessible by selecting specific characters.

Point-and-click interface that eliminates the need for typing, making the game more accessible and intuitive for players.

Consequences for player actions, where misusing items or making the wrong choices can lead to loss of progress or even character death, heightening the sense of risk and investment.

Eccentric and humorous mystery surrounding the strange occurrences in Maniac Mansion, with a wide cast of quirky characters like the mad scientist Dr. Fred and the hamster-loving Weird Ed, each with their own motivations and backstories to uncover.

Multiple possible endings based on the player's choices and the specific trio of characters they select, encouraging replayability and different narrative experiences.

Offbeat, "B-movie" inspired setting and atmosphere, with elements like a nuclear reactor in the basement and a "Green Tentacle" that players must interact with, contributing to the game's distinct and memorable tone.

Influential early point-and-click adventure that laid the groundwork for the SCUMM engine and gameplay formula used in later LucasArts classics, establishing the genre's core mechanics.

Replayability stemming from the ability to choose different character combinations, each of which may unlock new puzzle solutions or storylines, providing multiple avenues for players to uncover the mansion's secrets.