I don't usually bother with 'idle' games, but there's a lot of thought and effort been put into this one. Less an idle, more an active game. Is it wrong I'm logging into Kong just to play this?
Upgrading is made easy once you realise that the regeneration timer on the stars still ticks while you are in the summon screen. So, collect stars, summon, wait, go back to gave, collect stars, summon......rinse and repeat.
Basically a clone of the old Paperboy game then? Smooth enough, slightly repetetive atm. Consider moving hazards such as the kind that were in the original game, additional points for hitting 'sweet spots' on the houses, ie. letterboxes etc.
 "Toxic Tower Defense"){kind=icon}
 "Wizard's Run"){kind=icon}
 "One and One Story"){kind=icon}
 "Pingy the Ping Idle RPG"){kind=icon}
 "Egg and Ghost"){kind=icon}
 "Harmony Keeper"){kind=icon}
 "Generic Button Game"){kind=icon}
 "The Pinball Adventure"){kind=icon}
 "Epic War 4"){kind=icon}
 "Viricide"){kind=icon}
 "I Can Hold My Breath Forever"){kind=icon}
 "Tick-Tock-Room"){kind=icon}
 "PaperWolf: Training"){kind=icon}
 "Don't Fall"){kind=icon}
 "Bike Kissing"){kind=icon}
 "Max Damage"){kind=icon}
It's the rightest thing you've done today :D