Wave Two
From threeA Wiki
Wave Two, oft stylized "WAVE TWO," is the second series released in the World War Robot Portable toy line by ThreeA. Wave Two was released for pre-order on 20 November 2009 and consisted of Bertie Mk 2 packs that included matching colourway Square²s.
The only Bertie Mk 2s that didn't come with matching Square²s were Desert Combat Bertie Mk 2, which came with Euro Defense Square², and Deep Powder Bertie Mk 2, which came with Winter Defense Square².
Wave Two packs
A list of packs released in Wave Two: