Mash Up! Part 1

Mash Up! Part 1 is the 5th Alphablocks special that runs for 10 minutes. There's a Part 2 as a Numberblocks special.

Plot
The Alphablocks are in search of Numberblocks at Numberland, only to find 0|a number with only a mouth.

Numberblocks

 * 0 (probially)

Trivia

 * The description says "a number with only a mouth", which might be 0.