End of day five. The current state almost resembles an actual game. I added some platforms so that the player can jump around and a flag at the end of the level.
Next things on my list to implement:
I will be happy if I manage to finish these three things by the end of Sunday.
Like it a lot, the feel of the game reminds me a lot of retro games.
Also had problems with the platforms. For me it's not being able to move back when I missed a jump.
If you made the camera only move when the player is in the middle of the screen then it would be possible to go back a bit without needing the scene to rollback. You know like the Mario games.
It's looks neat thus far! My main critique would be that it feels a little easy--there's no real threat to the player, and with a little patience there's little challenge in killing all of the aliens. Perhaps some tricky choices, or special types of alien (fast aliens, perhaps?), or damage to the player?
Looks pretty good so far! my only annoyance is trying to get on some of the platforms if you don't move+jump you just jump straight up in the air, making no progress. maybe allow some small movement while in the air to fine tune where you land.