In Act 1 Level 2, there will be a mine with carts. There are warnings on the sides of the screen so you know where the carts are coming from. Avoid the carts by jumping over them or moving out of the way. After they pass you can go back to fighting the enemies. There are 2 sections of minecarts. Don't get hit at all by these minecarts and your trophy will pop at the end of the level. Happy Gaming!