中元普渡

中 = 丨 + 口 : Mnemonic symbol: a dart board, because you always try to hit the center.

Julian Giant Squid (zhu-) is throwing dinosaur bones (丨) as darts on a dart board in front of the engine ((e)ng1). To make it a bit more difficult he's throwing mandarins (口) into the air as well and skewers them up right in the center (中 is a mandarin skewered on a dinosaur bone) in mid flight with the dinosaur bones. He's still able to consistently hit the center (中) of the dart board.

元 = 二 + 儿 : Sun Wu Kong offers Yu the Great a coin just inside the anthill's kitchen. As Yu the Great takes it, she's literally shocked: Sun Wu Kong hooked up a capacitor to it to play a bad joke on her, and he's laughing his ass off.

普 = 並 + 日 : Mnemonic symbol: 斯普特尼克, Sputnik the satellite.

Petra Penguin is really angry at the sun for heating up earth's poles. In the space station she tries to kill the sun with a combine harvester, but the sun defends itself by flinging Sputnik replicas at Petra.

渡 = 度 + 氵 : Doggy Dog (du) is going to a party in the space station's bathroom (Ø4). To get there he'll have to take the ferry (渡), but he's worried that his drink will be cold by the time he arrives. He's constantly measuring the temperature of his bottle of water (氵) using a thermometer (度).