Thank you for playing and for your feedback, I will have to adjust the Knowledge-Points rewards towards the end for sure.
When I tested I unlocked the Shrinkers and Levels first, then I unlocked the rest and I could finish it in 45 min to an hour. However you are right in that no matter how the player plays you should not wait too long to unlock the next level (given that none of the levels have stuck orbs).
I see, for me I unlocked all the upgrade first (though not fully upgrade all of them, just buy the 1st upgrades) so I could see what upgrade options I have. Then I upgraded what seems to be the most useful, which include all of the missile & grenade upgrades, the poison shrinker's damage, the shrinker's cost, the attractor tool's cooldown, area, & strength, as well as the orb regeneration & payout multiplier upgrades. I don't know how other plays, but had the knowledge points be more generous, I likely would've upgraded everything first before going to the next level, but once I notice the slow down, I began saving points (though even then it's still extremely slow).
I hope my pov was a useful reference. I really want to complete the game but I don't want to wait that long for points to gather. Maybe introduce an upgrade that makes gathering knowledge points easier, I would definitely dive head first into buying that since (in most cases) it's a good long term investment that would help buy the other upgrades.
