Thanks all for your comments. I might've hidden a few of the earlier groves too well. For anyone having trouble, I posted a complete playthrough on youtube.
https://www.youtube.com/watch?v=p8w0m6DwJ_M
Works fine for me. It seems especially suited for mobile so I installed it on my phone and it works fine there also. A nicely polished game and I bet the gameplay could be addictive.
Thanks all for commenting. I'm working on an 'HD'(800x600) version of this right now. I am planning on adding music, more sound effects, more mobs etc....