Complex sentence: Also in 2012, the SpongeBob balloon wasn't inflated well and a hole blasted out from inside, and the Pikachu Balloons ears were not inflated well, but all the balloons did nothing wrong in the parade.
Split into simpler sentences: Also in 2012, the SpongeBob balloon wasn't inflated well; a hole was blasted out from inside. The Pikachu Balloon's ears were not inflated well, but none of the balloons did anything wrong in the parade.