Thank you so much! I definitely added more oxygen refills than needed, I could of been a bit more lenient but I wanted to make sure people who don't play this kind of game often or maybe got a little stuck would have a chance. In my own testing 15-20 refills seemed like a good amount but I wanted to be sure lol. I do like the idea of picking them up but starting off with only a few. Glad you enjoyed overall!