Hi there. Good start.
There are many details you ignoring these.
- The mario is jumping very high.
- When shoots fire not animation is played.
- No points appear when you step on an enemy.
- No turtles.
- Improved the effect when Mario gets a power, homgo or flower. (Big small, large, small)
Still have bugs, such as when the fire mario falls to the floor, sometimes bounces very high.