As suggested by others, if you focus solely on upgrading Darts and lasers (I also spent a bit on coin-magnet) then this is not too bad at all and requires hardly any grinding or buying creds.
Just about hack the grinding, it was going ok,
even the annoyance of money from a level not adding on to total at end I could live with,
but getting money set to -1 so I cannot buy anything at all is a stinking glitch that has really made me hate this stupid game.
Is there any way to get money back into positive integers?
Good game, only played it for badge of the day but really liked it, thats where badge of the day works best, making you get into a great game. Then completing the Best of 2012 as an unexpected surprise was even better.
Brilliant hard badge, great idea to have a walkthrough that helps you finish the levels but with only around 900 points then you need to work on it to get enough points. Nice work.