I made this like 3 years ago when I was a kid, it's pretty bad. I felt like sharing a project so I decided to share this :P Don't ask me why Yoshi is 8-bit and stuck in walking frame.
Me, and Yoshi's Woolly World for creating the original boss, Big Montgomery. Big Montgomery is in the fourth level of world 1, he is defeated by ground pounding his head 3 times. He will dig around and throw spike balls (mine doesn't throw spike balls).