@Byshop: Oh lol. forgot to say that.

It was back in 1997-1998 on a PC with windows 95/98.

Hello :)

I remember when I was 4-5 Years old I used to play a PC game.

The character was wearing some white suit or a space suit and you had to collect diamonds to unlock the next level.
I cant remember if there were any enemies.

Thats all I remember.. btw its a 2D game platform