Yeah I have Dangerous Streets and Diggers, but Oscar is impossible to find that's why I'm suspiscious. Would be great if someone could get the game and dump it indeed.
There are 2 other games that I can't find covers for them. They are International Open Golf Championship and Sleepwalker & Pinball Fantasies (have the back cover for this one), do you happen to have any of these?
Also there's that Whizz game, but I'm sure there's no cover to be found for that one at least not for now.