@Draygen that is absurd to the point I wonder if you are playing the game. The further you get the more each shipment gives income per sale. When it goes from requiring 100 shipments to purchase each salesman to each shipment yielding enough money to purchase a salesman obviously the income increase is affordable. When I can purchase 10 salespeople in 10 seconds of income I see clear gains in their output.
Could I get a feature to set a raid tier and rarity under which all equipment is autosold? At raid tier 4 the tier 1 and tier 2 stuff just junks up the backpack.
Using just baxters is clearly the best option. You can use the prior nests to quickly build up the new ones. Simplifies battle. You can upgrade all the nests for 1 price.
Be aggressive at the start araashi. Jack up your max mana to at least 8k so you are getting lots back for your kills. Maybe save 5k mana so you get 2 passes at the boss. Don't forget you can sling all your big gems at him as gem bombs.
I don't get why people are complaining about the kickers. The prices and stats are clearly listed use some strategy. I bought the 3rd kicker for 175 without even upgrading the first kicker and used it to buy the 3rd kicker. I used the 3rd kicker to purchase the 5th kicker with gold medals in the first two minigames. At this point I could easily get the distance from the 5th kicker and current levels to start improving on it. I like to this of the kicker structure as a punishment for people lacking common sense. Buy all the kickers and all the upgrades and you take forever.
Demon tree is just not as good as the other trees. It needs some dot added in or something. The ultimate's dont seem worth using the cooldown too large for what they do.
Out of curiosity: Did you finish the game this way (defeat the heart)? At later stages it should be more efficient to upgrade higher tier parasites.