On another plane of existence, Optimus travelled the path to the Matrix, guided by the voice of his old mentor Alpha Trion. The path led him to Grimlock, who had also been killed by Megatron; Prime rescued Grimlock from Kremzeek, the demonic eater of souls. At the gateway to the great beyond, they encountered Bludgeon, who announced that only those who bore the "key to Vector Stigmata" may pass through. Prime realized that the wounds on his body form the key, but the angel insisted that these would grant Prime access. Prime took Grimlock's sword and bestowed the key on Grimlock, allowing the former Autobot King to ascend into the Matrix while Prime stayed behind. Transformers vs. G.I. Joe #12
The TakaraTomy "Autobot Alliance" release of this toy has some significant differences, including casting the red plastic in a darker shade, making his shin and wheel joints grey rather than Hasbro's bronze, painting the Matrix of Leadership silver, and swapping out the dual energon swords for battle hooks, similar to 2010's Leader class Optimus Prime. However, due to the Japanese release retaining the Hasbro packaging, the box still advertises the dual energon swords rather than the hooks. He retains the masked face used for the Hasbro release.