Here are some Newgrounds submitions made by other users for you to watch while you are waiting for the next episode of Super Mario Bros. Z by Alvin-Earthworm to come out:
Sonic: Nazo Unleashed pt 1, 2, and 3
Sonic Shadow Duel
Mario VS. Sonic (VGDC)
Mario Vs. Sonic - L.E.
Mario and Sonic Bloopers
Mario vs. Sonic (John)
Sega vs. Nintendo
Sonic VS Super Sonic 1, 2, and 3
If your done watch these, comment saying your done and I'll think of more.