I thought I read somewhere that when the battery power got low, there would be an icon that said so. Last time I was playing Tetris I didn’t see one. I went to go play another game a few days later and it shut down after the title screen of a game. I changed the batteries and lo and behold it worked again, and the shades of red seemed brighter than before. I just thought that it would tell me when the batteries are low, or was that icon thing just a figment of my imagination?