This app was mentioned in 4 comments, with an average of 1.50 upvotes
Something like this? iOS: https://apps.apple.com/dk/app/unblock-me-parking-hero/id1483420878
Android: https://play.google.com/store/apps/details?id=com.ruanshaomin.game&hl=en
Not a flashgame, but there's a similar game app on playstore https://play.google.com/store/apps/details?id=com.ruanshaomin.game
It's the IRL version of Unblock Car.