I think this is hurt by the 64x64 limitation; it feels like I'm frantically moving my tiny letterbox around the map searching for a flower under attack as pointed to by the indicators. Of course, that's part of the game, but it's probably a bit far over the frustrating-vs-fun line for me. I also spent almost the whole first playthrough thinking that the little darker green "grass" things were flowers and failing to understand why nothing worked :) The swarming effect is really nice!