The difficulty scaling vs low income amount and high quantity of upgrade nodes feels pretty constrained. Also the % bonuses are so low that they are not worth it hardly ever.
A "Buy all upgrades under 1% of total angels" button would be nice as well as a "Buy all available cash upgrades" button... basically finished with the current game and fingers bleed from clicking upgrades.
New patch problems: duplicating from bank(might just be inventory)? Conflagurate doesn't wear off, pets glitching (visual and operational), others to come.
Is it suppose to idle at different rates on different screens? ATM you are best off idling on your highest upgraded screen otherwise you don't get your fastest income.
GAME HAS A BUG where in level select screen if you play next level on the left side of the button, it leads to sponsor website. This was NOT indented and me as a highly inexperienced developer I’m giving you my sincere apology. It has nothing to do with the sponsor.
 "Mutant Selection"){kind=icon}
 "The Perfect Tower"){kind=icon}
 "Idle Odyssey"){kind=icon}
 "Wild Wasteland"){kind=icon}
 "Destination Kepler"){kind=icon}
 "Increment RPG"){kind=icon}
 "Strikeforce Kitty 2"){kind=icon}
 "Keeper of the Grove 2"){kind=icon}
 "AdVenture Capitalist"){kind=icon}
 "Conquest"){kind=icon}
 "Idle Goo"){kind=icon}
 "Galaxy-Siege2"){kind=icon}
 "Idle Blacksmith"){kind=icon}
 "NeverGrind"){kind=icon}
 "The Lord of the Tower"){kind=icon}
 "Zombie Crusade"){kind=icon}
 "Idle Tree"){kind=icon}
 "Purrmageddon"){kind=icon}
That's the game. No it's not, I just have no idea why it would do that. Have you tried a different browser? Or a better game?