While I like the premise, there's way too much trial and error. The third level is really difficult in my opinion, and not because it's difficult to keep track off, but you have no idea how the level looks, so you'll have to first fail a couple of times, before you can get the right. I don't like games that work this way.
I tend to hate trial and error based games too, but this is not like, for example, Mirror's Edge time-trial where I fall at the same gap again and again...
Once you figure out you did something wrong you are not going to commit the same mistake again so your next try should be different from your previous one...
Sometimes it may be a bit frustrating to repeat your first 1-2 quantum states all the time, though... A 'map' feature might work, but it kinda takes out the discovering feel you get now every time you manage to go thorugh a door...
Don't stop trying the second part of the game (levels 6-9), it's more based on memory and the puzzles are more obvious...
Hedge-o-Matic said:
Epimethius rocks hard. Just when you though Prometheus couldn't get cooler.
IMO both modes have lots of potential... Epimetheus maps are cool and a lot more fun to replay... but you can't shoot your other quantum states!