I really can't think of any that don't hold up to me.
The closest that's "embarrassing" I guess is Mavis Beacon Teaches Typing minigames I guess.
One embarrassing I like NOW is a recent Bubsy game that's just a sidescroling runner.
Surprisingly good.

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Manliness transcends both space, and time.

What is a game you enjoyed as a kid that is embarrassing to tell people now?

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