Game of life, or say the automata game, is always fascinating. But if you want to rush a "Perfect game", here is a quick guide.

After opening the game, run the simulation mode once. The "Simulation" achievement will be unlocked.
Then click "Setting" in the main menu, and change difficulty level to easy.
Now you can play the "Play in color" and "Play in monochrome" modes.

For each level, all you need to do is, first let the game run for a few seconds, then pause the game. Select the top left single cell tool, then you can click on any existing cell in the grid to eliminate it. If you don't want to spend time on solving the problem, then just eliminate every existing cell. In this way, after resuming the game, you will automatically beat the level.

You need to beat every level in those two modes to get 100% achievements, so basically repeat it over and over again on each single level. I would say it takes less than 1 hour to get the full achievements.