Songs produced by Mike usually have some direct input by him. On "Carry Me Away" he played all instruments and sang the chorus, "Resurrection" originated from an instrumental demo created by him, on "Change" he played keyboards and samples, etc.
I think he played at least guitar on "Shoot First". Other people are credited for keyboards, scratches and bass on the album. I couldn't find the songwriters of this one.
He is credited as writer of The Instrumental.