This part will tell you how to remove those annoying excess plastic when you try to pull the part of the Gundam out from the runner.
NOTE: all ages under 13 should ask permission to an adult or to their parents before using hobby knife.
you will need a hobby knife to remove that peg
Place the knife on the safe spot while concentrating on the excess plastic, then push your knife down until you remove the peg. You can use sand paper after you cut the excess out from the part of the Gundam.