Mario & Luigi + Heroes: Hero VS Evil

Mario & Luigi + Heroes: Hero VS Evil is a announced upcoming crossover role-playing fan-game developed and projected to be released by Round 1 Industries.

The game will be released in 2021 or 2022.

Overview
The game revolves around the Mario Bros., Mario and Luigi, as they chase after Bowser to rescue Princess Peach yet once again... until Bowser and Peach enters a pipe into another dimension outside of the Mario universe. Mario and Luigi then gets in the pipe together and drops into the Heroes universe, where they accidentally fall onto Reggie. They apologize and not only they met her but also Liberty.

The 2 Heroes characters want to know what's going on until Mario and Luigi tells them what's happening. With no time to waste, the 4 heroes must embark on a adventure to rescue Princess Peach from Bowser, no matter what.

Meanwhile, with the Princess kept in cage, Bowser teams up with Negaman to get rid of the main heroes, send their kids against them and send their troops around the world where some heroes are kept cage hostage under Bowser and Negaman's will.

The fate of the world and the princess lies on Mario, Luigi, Liberty and Reggie's hands...

Gameplay
The gameplay will revolve around the same gameplay mechanics as Neo and True: The Rainbow Odyssey where it features 4 action options on the right and 1 or 2 action buttons will have settings such as switching characters, analysis and more.

Trivia

 * The game is a tribute to the Mario & Luigi games and AlphaDream, where the company got closed down as of October 2019.
 * The game may begin development sometime after Round 1 finishes True: The Rainbow Odyssey.