So far all I have got is:

1. Rings = 255 per pickup (works in special stages too)
2. Get way more Score per enemy kill/destroy
3. Timer (Maybe not fully tested yet but seems to function correctly}
4. Item medallions gain on spend

I am planning on adding Fruit and maybe some other things but not 100% sure, hopefully you find some use of this for now. Have fun.

Author: Red2953