A lot of things to like about this game. The art and the sound are great and the puzzles are genuinely enjoyable. I'm going to finish playing this one later. It's true that figuring out that first level is a bit of a pain but on the following levels, figuring out the heroes becomes part of the fun. Maybe, rather than a manual, what it really needs is a few extra levels with almost zero difficulty, so you learn what to do through experience instead of trying everything. Nice work!