The problem with this game is that all the levels are the same easy. And there is no end. You kill the octopus and nothing happens. Do all the levels in another gametype? This is silly. I advise the 3XP mode, and cost a lot to the XP upgrade. On level 27 it was very easy to kill the octopus. Buy speed and agility. Ciao
For all those hydraulic types who had problems defeating care taker and their dogs. Buy the best stuff for Roald and Veradux with as much strength as possible, coz it's all that matters now. With this strategy I managed to double their lifepoints: Veradux: 4700, Roald: 6600. And kill the dogs first. Use flash freeze 1x, restore 2x, decimate 2x, ice wall 2x, hot blood 1x, subversion 1x lasting pain 1x.