*** SPOILERS ***
Wow this game is cool! It took a few minutes to figure out that the rain was acidic, and it was confusing how everything at the start changed to a red dot, but couldn't be interacted with (cos they had no power). I was a bit lost, but I eventually found the generator room and colour code. I really love the design of the bridge, how it blocked access to one puzzle and provided a way across that turned out to be bait. It was a bit of a tease really, I was excited to explore the other island, but the stupid rain wouldn't let me (nice design!) I was really looking forward to finding out about this second island, but that was a bit of a let down, as there wasn't really anything there, just the button to finish. Then once the acid rain had stopped, I wasn't even allowed to do a victory lap across the bridge, which would have been some nice catharsis after my previous attempt to cross the bridge. Overall, it was a really great game, I could only wish for more puzzles and some clearer direction.
P.S. I really love what ya did with the thumbnail, awesome stuff!