Shroob Castle Route #89

Gate skip
Pipe block if you don't collect the babies through the gate
Dark room (2 copy flowers by the dark room)
Blue pipe
Space pants (3 copy flowers just below)
Baby spin skip (ball clip out of bounds, bring babies out of bounds, put babies on ledge)
Go right
In this room, you can get a Hit-Free badge
Go up all the way to the red button, hit the button
Get back on the ledges, go down, then right until the middle room
Go up to the top room
Pipe block
! block (not sure if this is faster)
Go right and in the blue pipe
Go left
Jump on spikes
Continue left, in the blue pipe
Go down
Toss the babies to the left into the spikes, 2 mix flowers
Adults walk right into spikes
! block, go right
4 mix flowers
Pipe block
Blue pipe on the left
!block, 2 copy flowers
Blue pipe to main area
2 copy flowers in top-left of courtyard
Baby spin skip again
On the ledges, go right
Lucky badge A in a hole above the courtyard
Go right, then up to the top-right room
Adults roll to the top-left room
Hit the laser blocks
If you opened the gate earlier, adults roll to the top-middle. Otherwise babies walk to the top-middle.
Pipe block, blue pipe
Go left, 2 mix flowers
Go up, blue pipe