A slightly more pliable lawn mower would've been the perfect balance between challenging and frustrating ^_^
This could be a fun party game with some more polish, tweaking, and local multiplayer. Imagine a group of people all coordinating to keep the lawn-mower running amok off the flowerbeds! Some of them will coax the beast to the centre and others will scramble for the boundaries haha
There's very little feedback to make the controls feel responsive. You shouldn't let the music smother sfx of in-game elements. There should be a warning telling me not to ruin the flowerbeds.