Nairobi, April 6 -- Historically, there has always been a formula when it comes to sequels: go big.

Whether you're looking at the jump from the first Matrix to Reloaded, the scale of Judgment Day, the frantic energy of The Mummy Returns, or the expansion of Despicable Me 2, "more" becomes an absolute mandate once a film performs well.

The first Super Mario movie turned a mere $100 million budget into more than a $1 billion windfall, so a sequel was a mathematical certainty. During the Easter weekend, we finally got that sequel, and as expected, they went big.

But this animated feature serves as definitive proof that splashing a million colours on a wall doesn't automatically give you a beautiful mural. Don't get me wrong, this is a gor...