The Law defines good works. Anything outside of that is not a good work. So this reasoning that there is now a new set of works outside the Law that we now have to obey to enter heaven is fallacious.
Jesus came to fulfill the requirements of the Law because we can't. He did and offers us His righteousness for simply believing Him. That's the work of God, to believe in the One who sent Christ. We are then clothed with Christ's righteousness and God does not count our sins against us.
Works are important. They do please God and people will hear a *Well done thou good and faithful servant* from Him.
However, works are the fruit, the natural product of the new life of God in an individual. They are evidence of that Life and they are what demonstrates the power of God to heal and forgive. It's what draws others to Himself and what He uses to draw others to Himself.
But they are not the means by which anyone is saved. Jesus even said that there would be many who appealed to their works and said, "'Lord, Lord, did we not prophesy in your name, and cast out demons in your name, and do many mighty works in your name?'" and He will say that He never knew them.
They obviously believed that Jesus was who He said He was and they obviously thought that the works they added would save them. It was their faith that was deficient, not their works.
It didn't. Don't make the same mistake.
If you read Matthew 5-7 or Matthew 25:35-36, or Romans 2:7, you will understand that good works are never given as an exhaustive list. Read the Bible once in a while and you will become Catholic or maybe Orthodox.