Unlock 'Donkey Island' in the Campaign mode.

Score a x10 or higher killing streak.

Kill an enemy troop by collapsing his own castle on him in any game mode.

That's not right

Even The Odds.

Score 6 Goals in a single game

Max out any upgradable Assault ability

Score your first Goal

Complete the game on Survival difficulty.

Defeat the ultimate evil within.

Remove an invisible enemy from the equation.

Outrun a gigantic threat in the city.

End a monstrosity in the underground garage.