What's your favourite Vocaloid Song?

in no particular order

1. seisou bakuretsu boy (rerulili feat. len)
2. nounai kakumei girl (maretu feat. miku)
3. akazukin no ookami (kikuo feat. miku)

i used to think nounai kakumei girl was a rerulili song but then i listened to it

In no particular order, since I'm too lazy to bother sorting them:
iNSaNiTy - Kaito and Miki (although I highly prefer the IA and Miku cover)
Dummy March - Oliver
Circus monster - Luka
Lie - Luka
I (Love) - Gumi
Our Belief - Miki
Mercy - Miki
Wine Berry - Miku and Gumi

There are dozens more, but I'm not going to list them all here. It'd take too long.

My favorites are Cantarella (Miku&Kaito),
Pumpkin March (Oliver) and Karakuri 卍 Baasuto (Rin&Len)

1. Alice Human Sacrifice (Meiko, Kaito, Miku, Rin and Len)
2. Last Night, Good Night (Miku)
3. Tell Your World (Originally Miku I believe, though I prefer Luka's cover)
4. Just Be Friends (Luka)
5. Alice in Musicland (Miku, Rin, Len, Kaito, Meiko)

1 balloons dance with the devils

2 secret police