The Brick Fan
“Overall, The LEGO Ninjago Movie Mini Green Ninja Mech Dragon (30428) polybag isn't the most glamorous polybag out there but it's a decent one and fairly easy to obtain.”
“Purchases exceeding S$120 (excluding Ideas sets) from the pop-up LEGO Store in the Plaza Singapura Atrium in Singapore during the "LEGO Ninjago Movie Challenge" held September 5 to September 10, 2017 as promotion for the movie earned the customer both this set and set... More 30425-1 along with available "make and take" Ninjago mask builds and discount tickets for LEGOLAND Malaysia.”
Full review at rebrickable.com