>>714396082 (OP)It enabled replayability, so even if you 'fail' the time limit you can simply start a new game with all your character progress and map knowledge carried forward or keep playing around in the mall.
Just beating the game isn't particularly difficult, but achieving some of the challenges like rescuing all possible survivors is pretty damn strict.
>>714396492Mizzurna Falls comes to mind, and that game is practically fucking impossible to get a good ending without a guide. Beautiful game, but actually playing it is annoying.