I hate to make any assumptions here but the code in your system.def seems to be identical to Jesuszilla's MFJ screenpack. The same can be said of some the other assets used. It appears you seem to have just made some slight changes to the MFJ screenpack without crediting him, or at least used his code as a base. Editing his stuff is perfectly fine, but no credit for Jesuszilla is bad form.
EDIT: If those lifebars are the work of Phantom Blood, he should get credit too.