Maniac Mansion: Day of the Tentacle was a graphical adventure game, originally released in 1993, and published by LucasArts. The game was released back in the days when floppy disk games were still common. It also got a simultaneous CD-ROM release featuring a full voiceover soundtrack. Day of the Tentacle was designed by Dave Grossman and Tim Schafer. Most recently, Schafer and his company released a game for the Xbox, PS2, and PC called Psychonauts, which shows a similar art style. Anyway, have a look at this wall drawing from Dante.