Well well well, here I am after 2 days working on idea for the game, and I've decided:
No puzzles
Yes,the game was to be puzzle based but puzzles are hard to make, you can make a puzzle but can you make a fun puzzle? It's possible, but too hard.
So, what did I do about this? I made it a boss fighting game, no levels, no enemies, no bullshit, just bosses. You fight one, fight another and then fight another. There may be bonuses in the game, but for now it's all about the bosses.