Thank you for your feedback; we’ll definitely take it into account. We might add the CRT effect in a future version, ensuring it doesn't interfere with the gameplay while still retaining that special touch. The mystery box is in the bottom right corner from the beginning, slightly distorted, but you can drag it out to see it better and try to open it. If the box doesn’t appear on your screen due to its size, please let us know so we can fix it. <3