 They also have the rights to produce sets based on Nick Jr. properties like "Blaze and the Monster Machines" and "Shimmer and Shine".Mega Brands has won 14 cases launched by competitor Lego regarding its Mega Bloks.The Lego Group has filed lawsuits against Mega Bloks, Inc. in courts around the world on the grounds that Mega Bloks' use of the "studs and tubes" interlocking brick system is a violation of trademarks held by Lego.