That game was very well put together. I got to 9 upgrades and wanted to play other games and come back, but my progress wasn't saved :(
The game is great though and would work pretty well on a touchsrceen I imagine. There seems to be a lot of upgrades and I haven't played through everything - it was very fun to play and listen to the scarcrow talk. Good job!
If you have time, feel free to check out the game I worked on. It would mean a lot