You've beaten the original, but haven't reunited with your fellow plant starters. Revisit the quest with the new project, and the same rules apply, use the WASD keys to move and avoid the meowths. When jumping, stop, press the W key, keep moving, and let go.
Haven't played the original? Check it out at https://scratch.mit.edu/projects/112954160/ ------------------------------------------------------------------------------- Bulbasaur from https://s-media-cache-ak0.pinimg.com/originals/04/71/51/04715182dd614878339b11a9c192ab12.gif (idea from Angelcookie344) Trees from http://orig09.deviantart.net/3d5f/f/2014/276/5/4/tons_of_tileset_3_10___gaia_trees_by_phyromatical-d81epok.png Image from http://static.zerochan.net/Starter.Pok%C3%A9mon.full.1551470.jpg