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there were two contest named master of parkour. during the first one the first parkour paint was available in the garage for those who want to take part in master of parkour and in second contest also the paint was available in garage even though many people bought it, it remained only in the garage of winners
if he is your friend simply go to friend tab, and find his name, now if u want to invite him, click on his name and clixk on "invite to battle".
guyss the gold box are completely random(i dont if the rules have changed ), but as far as i remember the boxes are completely random the fund doesn't matter.
for example this, the fund is only 31 and and only 5 kilss still the gold drops..

lol the one with whom i am dueling is the one whose posted above..