If your Beetle flips over, don't tap "Reset" immediately. Wait 2 seconds. The game automatically resets your car on flat ground, but you save 0.5 seconds versus the manual button. In time trials, this is the difference between 2 stars and 3 stars.
This formula works exceptionally well on Android. The pace is relaxed enough for touchscreen controls, but the later levels offer enough complexity to challenge puzzle veterans. beetle bug 3 for android best