This is a great game marred by a few bad menus. When you pause vs when you die, retry/restart are in different places. Additionally, if I was aiming for the Pause button to restart the level but the level failed before I got there, I ended up clicking the More Games button instead. I took off a star every time that happened.
 "String Theory 2"){kind=icon}
 "Red Remover"){kind=icon}
 "Achievement Unlocked 3"){kind=icon}