Jerk Shark
Much like a shark, this person under-exaggerates their ability at certain games. The jerk factor is added by the fact that this person does this to friends, not unsuspecting pool hall drunks.
Richard invites Greg over to play Guitar Hero, saying that he is only on Easy mode. Greg comes over only to get his butt whipped by someone who can 5 star his way through hard.
Under normal circumstances, Richard would be a shark. Because he did this to a buddy, he is a "jerk shark"
Under normal circumstances, Richard would be a shark. Because he did this to a buddy, he is a "jerk shark"