I found these at Target. Entertainment Earth lists them as Megabots Wave 3. There's no shortage of Transformers to buy, but I've found myself getting into Rescue Bots. Odds are when the new series starts, I'll be all in.
I ended up selling my Rescue Bots Series 2/smaller scale bots. I sold all the 2nd series human figs too. Everything was still carded. The entire series, Heroes & Villians. The following month, they stopped selling human/bot 2 pack, period. The stupid thing was i hadn't sold anything in since 2003. Before MP-1 Masterpiece Convoy was released in Japan. A drop dead gorgeous mom who loved her son, & her son loved RB made me blind to my own collection. Later I was hoping the Walmart 4 pack of all the original 4 RB's, would go on sale least $20 - $25. Nope, they still $34.87 at walmart lol. I still have all Series 1 though