While you're correct in saying that the Japanese didn't invade Macau, that's not to say that they didn't have a rather overbearing presence there.
In 1943, they crossed into Macau in an attempt to capture a British cargo ship. The Macau police force fired on them, and had 20 killed. A couple of months later, Japan had "advisors" installed in the government of Macau and stationed troops there; in effect, turning Macau into a puppet state.
A good source of info on Macau in WWII can be found here.
As the nearest of the large Indonesian islands to the major Australian base at Darwin, Timor was a logical staging base for Allied defenses in the days after the Pacific War's outbreak, as Japanese ships began moving through Indonesia. To turn Timor into a staging base, however, the Allies needed the port at Dili in East Timor. Over the protests of the Portuguese government, the Allies established a beachhead there and started setting up defenses.
In January 1942, just a month after Pearl Harbor, the Japanese began bombing Timor. The Dutch East Indies collapsed, and the small contingents of British, ANZAC, and American troops there soon pulled back. Several hundred Australian troops remained on Timor to stage a holding action.
This unit, known as Sparrow Force, held off 20,000 Japanese troops for a year with the help of Timorese supporters. Timor suffered greatly due to reprisals against the civilian population. Some Timorese embraced the opportunity to collaborate with Japan and throw off Portuguese rule. When the Japanese left, the Portuguese rounded up these collaborators and dealt roughly with them. When the war was over, East Timor was devastated and over ten percent of the population was dead.