One of the few idle games I've actual enjoyed playing, even if only for a few days. It does get very repetitive quickly. You have the option to manually aim the turtles main gun, but enemies start appearing quickly enough its generally better to just let it auto.
Has a mode where your a mouse or squirrel...some small furry critter with a tail. But you run and jump around an area where you pick pick between several options for what rewards you want, like weapons, xp, coins, other stuff, then you fight some enemies and get the reward after. The difficulty goes up each time. I rather enjoyed that bit.