Rifter - ALPHA shards
Total for this world is
Purple - 4
Green - 7
Orange - 3
Means you can skip 2 and still get the first green upgrade at the end of the first world!
Also I didn't record Un, but if you come back later after unlocking it you'll get:
Purple - 3
Green - 1
Orange - 1
It's a very short level so it might be worth doing