The Cerebral Palsy side followed up their opening 5-1 win over Thailand to register another victory over their Causeway rivals in a see-saw game
It was their second straight win after a 5-1 thrashing of Thailand in the opening game on Wednesday in Myanmar, where they are making their debut after CP football was introduced for the first time.
The victory did not come easy though, as the game swung back and forth at the Wunna Theikdi Training Field 3 against their Causeway rivals.
Mubarak Rastam fired Singapore ahead in the 28th minute, but Malaysia equalised six minutes later. Shahidil Saidi grabbed his third goal of the tournament to restore the lead in the 34th minute, but Malaysia hit back in the 54th minute. However, Mubarak hit a late winner two minutes later to give his team the three points.
Coach Mohamed Zainudeen was delighted with his boys after the game, which was played under extreme heat in the morning.
"It is a team that is built from scratch and there are no words to describe the cries of joy from the boys after the game," he told Goal Singapore.
"It was one hour of competitive action under extreme heat and the ding-dong nature of the goals will tell you how the game went.
"Sam Tan, the Senior Parliamentary Secretary of the Ministry of Culture, Community and Youth was present to support us and he told us after the game that his heart was 'beating so fast throughout' because of the end-to-end stuff!
"The whole team is in the medical centre now, icing and recovering from a competitive end-to-end game."
Singapore are ahead of Myanmar on goal difference and will play them on Sunday morning at 8a.m to decide who wins the gold medal in the one round-robin format of the competition.