I'm big.
I'm red.
I live in lyoko.
Who/What am i?
"another person" You're the crab. The he/she would give there who/what if they wanted to. You should try to be very crafty about it tho.

i'll go first.
I'm on many things.
I can be on things in lyoko, and not in lyoko.
I'm mostly red.
Who/ what am i?