Fillbots
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0x100 X - Input to Fill
0 - 1.0 beats (ROBO S)
1 - 2.0 beats
2 - 2.5 beats
3 - 2.75 beats
4 - 3.0 beats (ROBO M)
5 - 3.25 beats
6 - 3.5 beats
7 - 7.0 beats (ROBO L)
8+- Invalid (Can't Fill At All)

0x101 - Nozzle (Beat Animation)
0x101<1> - Nozzle Blackout Color (Unused)
0x101<2> X - Ready
0 - ROBO M/ROBO L level
1 - ROBO S level (Leftover)

0x102 X, Y - Spawn Robots
0x102<1> X, Y, Z - Spawn Robots (for remix transitions)
X = Type (Assembles after 0.5 Beats)
0 - ROBO M
1 - ROBO L
2 - ROBO S
Y = If 1, Robot goes off-screen
Z = Unrest (Used for remix transitions)
0x102<2> - Move Robot Over (ROBO M if none are spawned first) 1 Beat before Filling
0x102<3> - Beat Animation
0x102<4> - Blackout Color (Unused)

0x103 X - Blackout (Leftover)
0 - No
1 - Yes
This basically just turns the background black. Notably a white square behind the nozzle and the gears don't turn black with this.
The other blackout commands are new but seem to be unfinished/deprecated. sub 0x74 calls all of them.

0x104 - Nothing (Unused)

0x105 - Robots won't move off screen

0x106 0xYYYYYY - Factory Screen
0x509435 - "ntrRobot_long.bflyt" Factory No. 2 Get working! (Fillbots 2)
0x509449 - "ntrRobot_wario.bflyt" Factory No. 2 Get working! (Wario...Where?)
0x5095DC - "ntrRobot_short.bflyt" Factory No. 1 Get working! (Fillbots)
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Subs:
0x5D - Beat animation (4 Beats)
0x5E - Beat animation (8 Beats)
0x5F - Beat animation (16 Beats)
0x60 - Beat animation (32 Beats)
0x61 - Beat animation (64 Beats)
0x62 - Beat animation (128 beats) (Unused)
0x63 - Beat animation (Forever) (Unused)
The following robot subs start 3.5 Beats after the start of the sub
0x64 - ROBO S, Ending (Unused)
0x65 - ROBO M, 2.0 Beats, Ending (Unused)
0x66 - ROBO M, 2.5 Beats, Ending (Unused)
0x67 - ROBO M, 3.5 Beats, Ending (Unused)
0x68 - ROBO M, Ending
0x69 - ROBO M, 4.0 Beats, Ending (Unused)
0x6A - ROBO M, 4.5 Beats, Ending (Unused)
0x6B - ROBO L, Ending
0x6C - ROBO S (Leftover)
0x6D - ROBO M, 2.0 Beats (Unused)
0x6E - ROBO M, 2.5 Beats (Unused)
0x6F - ROBO M, 3.5 Beats (Unused)
0x70 - ROBO M
0x71 - ROBO M, 4.0 Beats (Unused)
0x72 - ROBO M, 4.5 Beats (Unused)
0x73 - ROBO L
0x74 - Blackout (Leftover)
0x75 - Restore Lights
0x76 - Fillbots (Practice)
0x77 - Fillbots (Real Game)
0x78 - Fillbots 2 (Real Game)
0x79 - Fillbots (Skipped Practice)