The only problem I have with this game is it keeps deleting my progress, including achievements, perks, tangerines, upgrades, everything, but it doesn't happen every time. Most of the time I log on after an hour or two of inactivity, open the game, and it's fine, but sometimes I do the exact same thing and I have nothing.
 "Tangerine Tycoon"){kind=icon}
 "Pixel Shuffle"){kind=icon}
 "Bullet Heaven"){kind=icon}