Hey, this is fun! And using arrows makes it even more challenging :-) The power-ups are good, but as I can see they are being spawned randomly and sometimes I get green barell after green barell and just keeping saying "Gimmie some bombs finally!". I assume that the achievements are not cummulative and you have to earn them in one playthrough? Oh, about the achievements: the first green barell medal and the first tank medal didn't unlock form me.