Hi, Averisa!
Yes, like 'find the fragment/missing item' minigame, I'm planning to always make it obvious so people can save first before the actual minigame starts ^.^
The puzzle minigame only happens in a specific place--the newest update have a sneak peek about the environment where you'll assemble the puzzle--so yup, you should have plenty of time to prepare OuO)b
Birdetta also suggested the time limit to be optional and I think it's a great idea! Those who want the last puzzle to be more challenging can pick it, but those who doesn't want to/find it annoying can leisurely complete it~
Last but not least, your english is fine so don't worry~ My grammar is also not the best, hence I need to polish the script multiple times x'D (my poor proofreaders)
Thanks again for dropping by!
xoxo,
SweetChiel