Create a Buffer for the camera system, where it only moves if the player is outside of the buffer zone.

• Implement Buffer Zone

Implement blocks that can be passed through from certain directions.

• Implement a block that can be jumped up to from below.

Implement the classical multi-height jump:

• Longer button press leads to heigher jump.

Create longer jumps if the player holds the jump button

Implement a way to store and load levels and a way for the player to progress between them.
Upon player death the level should reset.
Maybe consider a Life and Continue system like in the old games.
Consider Boss encounters on every fourth stage.

• Implement a way to store levels
• Implemen a way to load levels
• Implement a way to progress between levels
• Implement Level start effects
• Implement death restarts
• Create first level
• Create second level
• Create third level
• Create fourth level

Implement a way for the player to recieve power ups. Create a few dummy power-up phases.

• Create states to represent Power-Up states
• Create a way to recieve Power-Ups
• Create Dashing Power-Up
• Create Fireball Spitting Power-Up
• Create Sounds effects to indicate state change
• Create Visual effects to indicate state change

Create a Crude Health System to the game. Entities should have a health and should be able to damage others based on conditions.

• Player should be able to hurt enemies with jumping on their head.
• Player should be able to harm enemies with the ground pound ability.
• Graphical Indicator for enemies being hurt.
• Sound indicator for enemeis being hurt.
• Enemies should be able to harm the player upon collision.
• Graphical Indicator for Player being hurt.
• Sound indicator for the Player being damaged.
• Game Over screen upon the player losing all health.

Score points upon new score added should appear over the players head, and refresh their lifetime.
At the moment something is not correct, further investigations are needed.