Thanks for playing, I'm glad you liked it :)
The controls are a bit hard, yes. But there should be no need to jump between mouse and keyboard. It was intended to be played with the Enter/right Shift/right Ctrl keys with the left hand, and the mouse with the right hand. Would you mind giving some more input on how you played, or how you would like to play? Any helpful information would be appreciated!
My apologies that the goal wasn't clear. It's basically to collect carrots so that you can expand your game area, and/or but new pieces to build with. But in the end it's a sandbox game, so it's all up to you. As long as you have fun with the building :)
Thanks for the input so far!