During the September 2020 Game Boy lot check leak, it was discovered that Magnetic Soccer was at one point planned to have a Japanese release under the name "Kick Attack!!". As part of this, alternate versions of the game's title and sound test screens were found: along with the logo and copyright changes, the colors of the player's skin and outfit were swapped (a change that applies to both screens), the ball uses different shading, and the player shouts "Fight!!" and "Go! Go!" in text form, something that does not happen in the European version.