http://pastebin.com/93ViuRUi

You need $20k to fight the final boss, you get $150 per big coin and $50 for chest or medium coin. The bottom of the notes is referring to which big coins to get in each level; however, it does not mention which chest or medium coins to get. You get every medium coin or chest that is not out of the way, if it takes more than one zip lash to get, it's out of the way.

also I believe it's faster to run in ice form unless you're moving downhill, and faster to roll anywhere while in fire form.

Oh yeah and for battery I picked up everything in my path for w1 and 2. Doing that leaves you with a lot left over so probably only pick stuff up in w1 and turn in at the start of w3?