My brother gave me a PC game in the early 2000s that was his old game so it’s probably a 90s or even 89s game. The game had graphics and a similar theme/mood to Pajama Sam but probably worse graphics. It was a little bit of a horror or creepy game, I remember a brain being either on the cover or a main character in the game. From memory it was a point and click game. I don’t believe you ever see the character you are playing as I think it’s first person view. The brain nah have been the character you have to beat. I remember being grossed out by the game and for some reason whizz fizz comes to mind when I think of the game?? It probably wasn’t an educational game. It was definitely a kids game and it wouldn’t be that well known.
Long shot I know sorry for the super vague details but I was young!
The game is not Pajama Sam, Dr Brain or the neverhood.