It might take long, but who said finish them all in one session? 
Also schemes are not really long. Abnormal and Darts rounds are pretty fast. Aerial, Boom, Bungee are single round AND with sudden death. I don't think Kaos and Wascar will take time either.

Also schemes are not really long. Abnormal and Darts rounds are pretty fast. Aerial, Boom, Bungee are single round AND with sudden death. I don't think Kaos and Wascar will take time either.