One of the main problems we encountered was with our background walls coming into the foreground where the player is. This stopped the player from walking properly through the level, instead of being able to walk in a straight line the player would have to move up or down to get around these invisible walls.
The amount of damage the player took from enemy attacks was difficult to make work properly. Instead of taking a single bar of health damage from an attack the player was taking three or four times the amount of damage. This was a problem which took some time to fix but eventually this was fixed to make the player take the correct damage.
A problem that we encountered with the space level was trying to make the objects that you need to avoid through the level spawn at the bottom of the screen and move upwards towards the player at the top of the screen, without the player also moving upwards instead of staying at the same height. This was slightly time consuming but was patched fairly easily.
Self Analysis : The art style we chose was consistent and maintained throughout each of the levels. There could have been more detail put into the level designs but the character models were well created and true to the style of the game. There should have been more effort put into the sound of the game. The game mechanics could also have done with some improving and refining. The game controls were simple and easy to learn. The player speed also could be refined to make it easier to move around the levels as well as editing the collisions slightly to make them more defined and easily noticed.
8bit game design 
