any star in chat possible miss?

stuck at 29/30 star and check all place twice ,but no treasure box in all place

@XxDangerxX yes you can still go into the laboratory, just walk inside the anomoly. I found it quite hard to find the spot to get the prompt to enter the lab but I got there. That was my last star

I'm pretty sure I missed one in the laboratory. Now I'm in endgame and the anomaly is there the lab was. Is there any way to get back inside the lab?

@Zac Attack 2001 You need speak with the guard outside the jail in past.He will ask you that are you the one who escape from jail.Choose Yes and then Choose No.You will be in the jail again.

I have 28/30 stars & a 99.3% completion and missing 2 steam achievements. Does anyone know how to go back to the jail section of Evoland 2 & if so how? Lastly what should I do if I couldn't beat the mines boss with full health and does this give me a star for doing so or no? Finally, my personal steam achievements said I'am at 99.6% complete in Evoland 1 & 2!

Can you go back to all of the previous levels to collect the collectibles you missed at the end of the game? It is a common thing among open-world games nowadays, you know :D

Hey, I don't know if you are still active, but could I possibly send you my save state?

What happens if you forgot a star? Do you have to start a new game to get 30? Or can you go back and repeat levels?

I missed the jail one and panicked. Thank you for the assurance. :)