Let's start from beginning - WORLD 1 (W1).

It's quite important to pass through this map with maximum score. Good reason for building wealth towers, which adds you 30% more cash to every killed enemy. Of course, everything take place near crossroads. My succession:

1. build all 12 applied mushrooms (and let them stay on basic level)

2. apply elements combination to make 3 wealth towers closest to the centre of crossroads and upgrade them gradually to level 5

3. well at this moment, it's possible to finnish all other upgrades to wealth towers on level 5

It's simple and faithful philosophy! Commonly you can count with all 6 skill points.

But yet... Unfortunately, it has one slight construction fault - final enemy in batch of them all sometimes pass through...  ;-)

Next lesson - WORLD 2 (W2). Sometimes...