You might perhaps find some answers in the following TV Tropes page on the subject:

https://tvtropes.org/pmwiki/pmwiki.php/Main/PlatformGame​

Or in the following Wikipedia page:

https://en.wikipedia.org/wiki/Platform_game​

Perhaps you can draw some inspiration from how Keen (1, 2, 3, 4, 5, 6) and Vinyl: Goddess from Mars did it?

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