Toxikita's Toxic Meltdown

LEGO 70163 Toxikita's Toxic Meltdown is a 429 piece Ultra Agents set with 4 minifigs released in 2014. It features minifigures of Ultra Agent Curtis Bolt, Toxicity, Redox, and an Astor City Scientist, a helicopter with a chain, a lab with remote-control safety claws, a crystal, stud shooter, flick missiles, and an explode function. It was retired in August 2015 with a lifespan of 15 months.

Description via Its a Block Party