Alien Hominid Easter Egg - Tricky the Clown

Tricky the Clown from the newgrounds flash "xkittyfrogmeowmeow" by DanPaladin comes out as a cameo in the misson where you are on the freeway, he appears inside a car and inside area 51 where there are windows and you see the fat kid, the yeti, etc. he is inside one looking at you.