The following animation are from the DBZ game Hyper Dimension and have been put together by the DBZN staff. These took quite some time so be sure to ask for permission before posting these on a public domain (websites, forums, etc.).

Majin Buu Animations

Majin Buu powering up

Majin Buu transforming

Majin Buu putting his foot underground then attacking

Majin Buu dematerializing

Buu transforming his hand then attacking

Majin Buu using something on his head to attack