Game Concepts that you found difficulty in as a child but were actually rather simple

[cirno369]

I didn't understand EV/IV values in Pokemon
Mirror's edge was extremely difficult for me but now is kind of easy
The Sonic Chaos emerald minigames, all were really difficult for me but now easy, along with Chemical Plant Zone 2
Resident Evil games were kind of difficult for me
Mario games made me want to kms, especially Mario 2