I personally Idled this on Level 7-8 with the use of Tinytask and Project my screen If you don't feel like macroing this still this level is the best IMO as it requires just 6 moves to collect 50 food.
Edit: 8-1 is a decent level as well (see comments)
This.can be done without project my screen. Just press the buttons on your keyboard rather than clicking).
Download Project my screen here:
https://www.microsoft.com/en-us/download/details.aspx?id=425...Download Tinytask here:
https://www.vtaskstudio.com/tinytask.phpOpen project my screen, click escape to minimize it. Then Open tinytask as well. Open the game on your phone and select level 7-8. On tinytask click record, then click the correct arrows to solve the level (Right Up Up Right Up Left). Then click restart once the level is solved and click the record button again. Then select infinite replay and click play. If starting from scratch this will pop at 200 replays, which took about an hour for after solving all the levels.