Too bugged. Swamp levels are worst so far. Disappear from screen, press space once in tunnel mini game and jet to the cave ceiling without even getting to start.
Finish and Fill All Buttons are too close together. I've accidentally clicked Finish when I wanted to buy resources and screwed myself for the following day multiple times.
Easy win on 'Epic' boss. As long as you have all of the upgrades purchased from the legendary nebula, I will list the items you need from the black market, elite, and neko's shop to make sure you have an easy time of beating the last boss. I will reference the items by listing them 1-13 starting at the top and working down the upgrade menu. From the BM, you need 3, 4, 5, 6, 7, 8, 11, 12, and 13. From the Elite Shop, purchase 1, 2, 4, 6, 7, 8, 10, 11, and 13. Finally, from Neko's, buy 2, 3, 4, 5, 6, and 12. With those upgrades, all you need to do is repeatedly ram the last boss with autofire on and using the "Repair" ability and "Darkness Energy Charge" as needed. As long as you stay close and repeatedly ram the last boss, it will not fire at you and you do not take enough damage to die. Not exactly fair, but it works.
 "DuckLife 4"){kind=icon}
 "Fairway Solitaire"){kind=icon}
 "Canoniac Launcher"){kind=icon}
 "Swords & Potions"){kind=icon}
 "Focus"){kind=icon}
 "Knightfall 2"){kind=icon}
 "Not To Scale"){kind=icon}
 "The End"){kind=icon}
 "Enigmata"){kind=icon}
 "The Tickler"){kind=icon}
 "Diamond Hollow"){kind=icon}