in aggeggio you can't snap any G into the G slots, you have to do specific g's which i think you should be able to put any, and i'm pretty sure it's like that for other levels too. in the word select you should give the arrows an outline or something because they're kinda hard to see and i haven't noticed them when i finished the first word. you can kinda tell by the pictures what the words mean but since i think this is an app for foreigners too (?) you should maybe add a direct translation somewhere under the word select