I just made a game in two days, a personal best. Yeah, there may be bugs like the score text not appearing when playing but it is there, its probably an issue with the layers that will be fixed at a later date. Same goes for the borders...there aren't any. The blue edges are unintentional and will be sorted.

I spent yesterday afternoon (day 1) developing the code and features behind it:

• The lane-based movement
• The shooting
• The enemy spawning
• The enemy damaging the player
• The game over screen etc

Today, I focused on making sprites for everything, this meant:

• Picking a colour theme
• Sticking to the 4 chosen colours (due to the GameBoy restrictions)
• Making the characters and the background