Alternating Space - Almost there
About 10 levels, sound and some music, done!
Only need to iron out some minor bugs. This has been fun.

Prepare your brains for some mirror action :v:
My tools so far: - Linux laptop (Fedora 28) - Godot 3 (gdscript) - Tiled (and Tiled Plugin for GD) - aseprite 1.2.7 - LMMS - Audacity - Peek (for gifs) - BlackMagicDesign Fusion (for backdrop) - Coffee
Looking forward to play yours! Good luck everyone.