Press the green flag, and then answer the question pop up. Then, press on any of the sprites.
Sounds from peal.io and other sources. V.01 - Loaded to Scratch Website. V.05 - Included Sans and Super Mario into program. V.1 - Reloaded onto Scratch Website. V.11 - Included Nine Tailed Fox operative V.14 - Added Kirby, Albatross from Rolling Thunder and a Pacman Ghost V.15 - Added DOOM sprite and Megaman. I also fixed Sans V.16 - Fixed bugs and changed the NTF operative V.17 - Changed the front screen V.2 - Got Samus to join us and Donkey Kong V.21 - Got a fighter from River City Ransom and Zero from MMZX