mike contributed a lot to many genesis hits and classics, even though he wasn't as bossy as tony.
the cinema show: first half is mainly mike's (if i'm not mistaken)
dance on a volcano: lyrics by mike
ripples: mainly written by mike
squonk: same as above
follow you, follow me: guitar riff and lyrics by mike
turn it on again: same as above
behind the lines: lyrics by mike
abacab: idem
mama: drum machine by mike
invisible touch: guitar riff by mike
throwing it all away: lyrics and guitar riff by mike
land of confusion: lyrics (and probably something else) by mike
i can't dance: guitar riff by mike
...just to name a few.