Its actually pretty simple in MMF1.5 / 2
Ive got a 80% completed Baddudes Vs. Dragon ninja Engine in MMF2,
I say 80%, I got 1 or 2 players working, and got as far as I writing the AI for the Bad guys, and I kinda lost interest,
anyway, Checkout www.create-games.com for tons and tons of help on MMF's
but start with the detectors for collision, and then gravity, thats how I wrote mine, once the jump/duck/fall are working, Fast loops or not, the rest will plop into place,
with regards to scrolling, personally I, center the scrolling on an object that isnt the player,
and when the players X is greater than the object, the move the object along the X axis, this gives the effect of Street of Rage type scrolling,
