Popful Mail is a side-scrolling platform game that was initially developed for the NEC PC-8801 and released for Sega CD in 1994. The game contains elements from role-playing games by allowing players to interact with other characters and change their character's equipment and attributes. Players start with Mail, but they gain access to Tatt and Graw, as they progress. They are able to switch characters at any time through the menu, which allows them to utilize unique running and jumping abilities. The story was updated from the original game and contains additional dialogue that adds to the sense of humor built into the game, making it enjoyable for fans of entertaining action games.