Here’s an overview of the game, via DotEmu:
Boasting beautiful, hand-drawn animations and a re-orchestrated soundtrack, the cult classic returns with a unique blend of exploration, action, and adventure. Play as Lizard-Man, Mouse-Man, Piranha-Man, Lion-Man, and Hawk-Man, and use their unique abilities to uncover the land’s deepest secrets. Switch in real-time between the original retro graphics and the visually stunning modern remake, and input your old Sega Master System passcode to unlock all of your old saves and progression – just how you left them in 1989.
DotEmu also teased that “a last surprise” that will be announced on March 22.