Rayman Pirate-Community

Nope, it looks somewhat pirate-like, but it doesn't use Pirate materials.

Céloche ?

Céloche is correct, you can see elements of Pirate construction in its eyes for instance, which are windows from pirate installations.

Point to Plum.

1 point - PluMGMK

QUESTION 2 - Where else does the in-game music from "The Disc" play?

Rayman Revolution’s credits.

Correct, point to Fifo.

1 point - PlumGMK, Fifo.

QUESTION 3 - What were the Rabbid ships seen in prerelease material for the original RRR inspired by?

They were inspired by Martian tripod from The War of the Worlds.

Correct, point to Carrot-master.

1 point - PlumGMK, Fifo, Carrot-master.

QUESTION 4 - Rayman could use a cannon in the 2D Rayman 2 Prototype. But what did it shoot, and what was its purpose?

It shoots cannon balls, and they’re used to let Rayman hang on them.

Sorry if the wording is terrible, I really couldn’t do better.

Correct, point to Fifo.

2 points - Fifo
1 point - PlumGMK, Carrot-master.

Last one for today...
QUESTION 5 - Texture hacking Rayman 2 unveiled a third variant of Magic Sphere, what was this variant?

The red one.

Carrot-master is correct!

2 points - Fifo, Carrot-master.
1 point - PlumGMK

QUESTION 6 - Name the Exhibition Battle courses from Rayman Arena.

Gemstone Temple
Forgotten Dungeon
Ghastly Trees
Spooky Towers
Pac Arena (Gamecube/Xbox only)
Low Gravity Arena (Gamecube/Xbox only)

That'll do me.

2 points - Fifo, Carrot-master.
1 point - PlumGMK, Ray502

QUESTION 7 - Bunnies Scientific Facts is a well known set of promotional videos for RRR. One video involved a Rabbid being kicked as a football. This video was later edited during the 2006 World Cup to represent a team that France were playing against. Which team was this?

Italy?

Crud, I meant the Bunnies Scientific Facts series, I'll allow a retry.

Portugal? Irdk.

Nope, fraid it wasn't that either. Anyone else?

Woulda guessed Brazil, just looked it up, seems that is it unless I'm losing my marbles.
So, my answer is Brazil.

Correct, it was indeed Brazil: 2 points - Fifo, Carrot-master, PlumGMK
1 point - Ray502

QUESTION 8 - Name the versions of Rayman 2 which use the Isle of Doors.

Dreamcast, iOS and 3DS versions.