It took almost a month to create a full any% Kirby Mass Attack run, requiring the user to get all the rainbow medals (there were 43 out of 186 in the game, with each stage having one except for the boss stages). The in-game time for this run is 3:22:25, while the actual RTA timing is 3:26:52.6. Damage to Kirbys only happens in Dedede Resort stages 5, 10, and 11, and Volcano Valley stage 2. Otherwise, this run is smooth.