this game reminds me of habbo,(how to infect a good amount of people : wait until lots of people are in the same area and click on the area where is more people)
why i can't upgrade cactus?click,upgrade,and then he disappears slower by hits,same damage,2 blocks tall,only a block of width,same thing as 3 blocks tall,but slowest disappearing by hits,3 blocks tall=fully upgraded.
i know how the ice is the fastest,if you use a diamond/gold/iron/stone/wooden pickaxe on the ice,diamond:6 times faster,gold 5 times faster,iron:4 times faster,stone:3 times faster,wooden:2 times faster.
You can use all bosses after you beat all of them!