how to win the last level: max archer tree, continuously mash 3-2-1 hotkeys in order to kill the biggest enemies, master the 1st and 2nd trees and don't touch the magic one. put 4 lines of spikes, 1 of walls and 3 of archers.
As Suilink said.. it's a medium badge, it's not an easy game but to me it's been beautiful and challenging, and managed to finish it within an hour or two.. played on Chrome.
 "Millika Village")
 "Epic Battle Fantasy 5")
 "Pirate Defense")
 "The Final Earth 2"){kind=logo}
 "Four Color Theorem - Coloring Puzzle Game")
 "Unnamed Chick Game")
 "Magirune")
 "FireBlob")
 "Ring Pass Not")
 "Siege Knight")
 "Building Rush 2")
 "Me And The Key 2")
 "Shorties's Kingdom 2")
 "The Darkside Detective Demo")
 "Labyrneath"){kind=icon}
 "Nano War")
Thank you!