http://www.reddit.com/r/LoLFanArt/comments/1cncma/nexus_tower_defense_by_evil_potato_on_kongregate/ Posted this thread on Reddit to hopefully get it more recognision ^^
There should be a function to see around your planet, if the planet is on the other side of the map it is impossible to shoot him, because u cant see him, and sometimes the camera zooms on the wrong point of a planet so u cant see the enemies even if they are very close