“Mario Maker,” a design-it-yourself game created for Nintendo’s Wii U, may not reach the eighth-generation console during the first half of 2015 as originally promised. The game is still planned for a launch date this year, but Nintendo doesn’t guarantee it will reach buyers before June, according to information released following the Japan-based gaming company’s earnings release.

“Mario Maker” was unveiled during the Electronic Entertainment Expo in June of 2014. The game will allow players to create their own 2D platform “Super Mario” levels by inserting blocks, enemies, items and more features from the original “Super Mario Bros.” game. “Mario Maker’s” release was supposed to be part of the original “Super Mario Bros.” 30th anniversary celebration. The platform video game launched for the Nintendo Entertainment System in September of 1985 and was named as the greatest game of all time in 2005 in a poll by video game site IGN.

“Mario Maker” will let users share their creations with other players. There are four different styles of games planned, which include themes from “Super Mario Bros.,” “Super Mario Bros. 3,” “Super Mario World” and “New Super Mario Bros. U.” Nintendo hasn’t revealed whether various worlds and levels in previous games will be accessible.