I_Am_Selim's Comments

The game needs a way to convert cash into something else. I have 180k in the bank, no room to build, every special building, and nearly every upgrade, but not enough Bloonstones for the rest and too much money for it to matter anyway.

The number of tooltips in this game that are flat out wrong is obnoxious. Spike Factory tool tips are especially bad at this. x/3 makes the factory shoot twice as fast but doesn't tell you, 4/x also makes the factory shoot twice as fast without stating so. Boomerang tower tooltips don't tell you how many balloons the tower is capable of popping after 2/x so you have no idea which upgrades are more efficient. Finding out which special buildings you need for tier 4 upgrades is stupidly difficult because the buildings themselves often times don't say and you can't tell by hovering over the upgrade until you've completed the tier 3 upgrade before it. Stop adding artificial difficulty because you're too lazy to write a few lines of code to include helpful tooltips.

The artificial level caps on upgrades and buildings are pretty redundant. If you need 50k gold to buy an upgrade and the upgrade requires level 21 you aren't going to get it at level 21 because you can't have enough bank capacity for that at level 21. Having caps on bank building limits until certain levels is pretty dumb for this reason. Eliminate one or the other, both are unnecessary.