Mr. Do!'s Castle

Your goal is to destroy all the deadly unicorns or knock out the blocks with cherries on them to unlock the door at the roof of the castle. If you succeed, you'll earn points and a new letter in the word EXTRA. The game requires strategy and timing as the castles become increasingly difficult to navigate.

As you progress through the castles, you'll encounter new block types, including those with skulls on them. Knocking out these blocks will create bridges, making it easier to cross certain areas. However, be warned: the unicorns will become faster and more numerous as the game progresses.