Hey there, Transformers fans!

It's been a few weeks and Battle World rages on! We've reached the fourth round, and with only four Kaiju and four Robots remaining, things are starting to get really exciting. We're happy to report that Optimus Prime is in the lead at the time of this posting, but it's up to YOU to decide who makes it to the final battle! Watch the Battle World trailer below, vote for your favorite Robot and Kaiju, and make sure to tell us about YOUR ultimate battle in the comments.