Fundamental of Game Development
Here we learn about how to make a game from scratch.
From tutorial, first level and boss. We learn about how to make game difficulty progress. Mechanic for skill, enemy and boss.
The game is a old reference of my favorite shooter game called striker 1945, what inspired me the most is the boss fight, after defeating it, you would think you have won the game, but the boos final suddenly show up and continue the game and much stronger and harder to defeat.