Me no buy Lucky upgrade again unless it is either made to INCREASE the luck instead of decreasing it, or made to it can be adjustable to player's liking, with only up to 3-6 options to choose from, and any new options added afterwards replaces other options.
The "Evolution Nat. Selection Lucky" Upgrade in the Upgrade menu is broken, as it DECREASES the luck, not increases. Either fix the description or fix the Success Rate in the Evolution screen so it starts out as between 1-10% lucky, and increase it every time the upgrade is purchased.
 "Idle Evolution"){kind=icon}
 "Globetrotter XL"){kind=icon}
 "Interactive Bob 2"){kind=icon}
 "Curl Up and Fly!"){kind=icon}
 "Kongpanio"){kind=icon}