Bad Piggies Ground Hog Day Bonus Level 1-I (1-1) can be 3-starred in one step. Build a contraption without using the air pump, as it’s a forbidden part. Instead, use the fan to generate some traction then detonate the TNT very quickly to send the pig high in the air. He should land on the star box and roll towards the finish line. Celebrate!
If you have a different strategy for completing this level feel free to leave a comment below.