by Joshua Russo
To help celebrate the 20th anniversary of Pokémon, Nintendo has released a new event course for Super Mario Maker that unlocks sprites for the original starters from the Kanto region of the first Pokémon game. Bulbasaur, Squirtle and Charmander are all unlockable if you complete the event course. To unlock each one you will have to play the course three times as each respective Pokémon. This course is available in the event courses section of Super Mario Maker today!
— Nintendo of America (@NintendoAmerica) February 12, 2016
UPDATE: Nintendo posted a video of the sprites in action.