Only one I'm missing now I think.

I've been playing over and over, even if I have beaten all maps and gonna do achievements for some challenge, since I love this game! However...there are two flower weapons which says "found somewhere in x map" but... I cannot find these :( I thought, maybe destroy flower of different color? nope. Oh! maybe that little hut? nope. I tried to destroy all objects I could and have no idea where they're supposed to be found....

I think it's a little short and therefore we can't upgrade our skills too much.

I am missing number 49 for this last achievement, I have ran all the maps multiple times and killed everything I can find. anyone else able to complete this? Its driving me nuts as I have no idea why its not counted, I have not seen anything new or rare to kill....

Sometimes I get a level up screen with no options and I can't do anything except Alt+F4 the game. Happened twice now. Also I was wondering how the star system works for the maps. Is it based off kills? levels? gold?