Default Controls
← → ↑ ↓ = Directions
Z = A, X = B
A = X, S = Y
D = L, C = R
Enter (↵) = Start
Shift = Select
About the Maniac Mansion (Japan) Nintendo Entertainment System (NES) Online Game
Hey there! Welcome to the online version of Maniac Mansion (Japan) for NES. Get ready to explore a spooky mansion, solve puzzles, and make choices that affect the outcome of the game. Play for free in your browser without any downloads. Just click and start playing now! Enjoy the classic gameplay and nostalgic graphics of this retro game. Have fun!