many complications
1)first was the clickable label at the right top side opened many windows
then 2)my little ore collectors werent fast enough to get the ore(also had boost 4 them also)3)by the time i had the machine gun fully upgraded there were a million enemies so i needed a bazooka which i never got because the flying ship never gave.
good game, just issues with it and need more ore faster! its a must! playable game tho