This is "Dexter's Laboratory: Mandark's Lab?" for the PlayStation. As far as I can tell this is quite an obscure game that not many people know of, which comes as a surprise to me because any 90s kid including myself should know Dexter's Laboratory.

The premise of this game is really quite simple: Mandark, Dexter's archenemy from the TV series, finally succeeds in sneaking into Dexter's lab and changes the entry password so that he can't get in.

As Dexter, your objective is to find out what the new password is, get back into the lab and librate it from Mandark's sinister clutches. The game is split into four different levels with various minigames scattered throughout; completion of these minigames will advance the storyline.

As this is quite a short game, this walkthrough should only be between around 912 parts.

Enjoy!