Update: We've added the fourth and final teaser image that reveals the entire cast of this epic Sega/Capcom crossover.

Last year, Archie Comics announced that they were planning another crossover between their Mega Man and Sonic the Hedgehog comics in 2015. The big twist with Worlds Unite is that the traditional Mega Man and Sonic casts will be joined by characters from the Mega Man X and Sonic Boom games. But as it turns out, even that just scratches the surface of this epic crossover. World Unite will bring together a number of popular franchises from both Sega and Capcom.

Sonic Boom and Mega Man X Unite in Comic Book Crossover

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Day 1

Over the next few days, we'll be revealing the full character lineup for Worlds Unite and offering commentary from both writer Ian Flynn and editor Paul Kaminski. Keep checking back throughout the week for more character reveals and commentary.Ryu, Vyse (Skies of Arcadia), Base Wing (Panzer Dragoon), Gore Magala (Monster Hunter 4)"There have been some crazy awesome franchises joining the Worlds Unite fray up until now, but you know we had to save some EPIC franchises for last! The high adventure and swash-buckling action of Skies of Arcadia stands alongside the ultra-popular and eye-grabbing world of Monster Hunter! The cool creatures and epic scale of Panzer Dragoon joins Ryu, Chun-Li and all your favorite characters of the action-packed world of Street Fighter! Do not miss a second of the biggest crossover event EVER to hit Archie Action Comics!""Skies of Arcadia is one of my favorite games! It has action, adventure, humor, dire world-spanning stakes, and a cast of utterly endearing pirates. I was delighted to have a chance to have Vyse show up in our Sonic & Sega All Stars Racing Transformed story, and I'm even more thrilled to feature the whole crew this time around. They don't overshadowed, of course, the most awesome flying rail shooter to grace the consoles - Panzer Dragoon. And what really needs to be said about Street Fighter and Monster Hunter? One is practically the foundation for all modern fighting games and lives on with Street Fighter V on the way. And the other pits you against massive beasts as training fodder so you can maybe survive long enough to hunt down awe-inspiring boss monsters. New and old, continuing or cherished, they're all legendary games that we want more of!"Nights, Tyris Flare (Golden Axe), Red Arremer (Ghosts 'n Goblins), Amaterasu (Okami)"The Worlds Unite crossover event brings with it adventure and action from across the entire video game landscape! From iconic franchises like NiGHTS into Dreams and Ghosts 'n Goblins, to the visually-striking worlds of Okami and Golden Axe — you're not going to see another combo this anywhere else!""On the one hand we've got two iconic franchises on opposite ends of the timeline. Golden Axe was one of the first major SEGA hits and is a classic for its arcade-y action and crazy visuals. NiGHTS into Dreams is comparatively newer, even more psychedelic, and stands out as one of the premier titles of the SEGA Saturn era. On the other hand we've got a Capcom classic and a newer masterpiece. Ghosts 'n Goblins is one of those games that set the bar for all others to reach for in terms of quality and gameplay. Frustrating, hair-tearing gameplay - but we love it for its difficulty. And then you have Okami that transcends gaming and becomes 'art' in its own right."Alex Kidd, Billy Hatcher, Nina (Breath of Fire), Viewtiful Joe"With the formation of the reality-traversing "Genesis Portals", our heroes will be taken to new worlds from throughout the Sega and Capcom universes to do battle with Sigma's forces of evil! From the high-fantasy worlds of Alex Kidd and Breath of Fire, to the mischievous and over-the-top adventures of Billy Hatcher and Viewtiful Joe, Sonic, Mega Man and co will explore places never before seen in Archie Action comics!""On the SEGA side of things, we've got the original company mascot in Alex Kidd. When we were putting together the list of franchises to feature, I knew he had to be on the top. Sonic maybe synonymous with SEGA now, but it's only because Alex paved the way for him. And on the other end of the spectrum is Billy Hatcher, the lively and original platforming hero that was the last major new IP for SEGA - at least in the realm of platform heroes like Sonic and Alex. On the Capcom side, we've got the entire party from Breath of Fire 3, arguably the best of the franchise. (I leave the fans to debate how correct/heretical I am). And Viewtiful Joe is as wild and colorful as any franchise out there, which makes it a perfect fit for this cross-world adventure!"Sonic, Mega Man, Mega Man X, Sticks"Worlds Unite once again brings together the worlds of Sonic the Hedgehog and Mega Man, but the other two major franchise players in this story come from the wacky world of Sonic Boom and the futuristic battle-torn world of Mega Man X! Last year saw both the comic series launch of Sonic Boom, as well as the major Mega Man comic storyline 'Dawn of X', and these DRASTICALLY different worlds add a combo of comedy and action to 'Worlds Unite' with explosive results! But the biggest addition of all comes in the form of the villainous SIGMA from the world of Mega Man X, who will play a key role in testing both the resolve and might of our heroes!""We already had Sonic and Mega Man square off in "Worlds Collide" and proved how equally heroic, powerful and blue they are. This time around, we don't need to spend the time establishing them. We can dive right into the heroics - or villainy, in the cast of Act One! I'm really excited we get to dive deeper into MEGA MAN X after dabbling in it earlier. It's loads of fun pairing X's stoic earnestness with Sticks's goofy conspiratorial nature. Just between these four, we've got a huge range of tones and character that are fun to play off each other."

The first issue of the Worlds Unite crossover will ship in May 2015.

Jesse is a mild-mannered writer for IGN. Allow him to lend a machete to your intellectual thicket by following @jschedeen on Twitter , or Kicksplode on MyIGN