Pixel modifications

[megamarc]

Wow that is amazing that you could do it so quick!

I should make an attempt with Godot first, as I've been led to believe this sort of approach is reasonable with Godot's 2D pixel engine.  I don't want to have you do it if I decide not to go with Tilengine.  Though it would probably be useful to have on the roadmap, as those kinds of games are from that 16-bit time period

Don't worry if you end not using Tilengine! I thought that having full bitmaps was a good idea that could give much value while being easy to implement, so here it is :-)