You've come to our website, which offers answers for the Brain Test 4 game. This webpage with Brain Test 4 What's Uncle Bubba's secret answers is the only source you need to quickly skip the challenging level. This game is made by developer Unico Studio, who except Brain Test 4 has also other wonderful and puzzling games.
Try to find his tattoo. Use Doctor Worry's x-ray glasses. The tattoo is hidden somewhere around his belly.