-I like the concept, it's nice and simple.
-I really like the setting and the gfx/music. It really gives the game a mellow feeling. I didn't feel at all rushed when I played it.
-Being able to change individual items in the options menu was a great idea.
Not so good:
-TURN THE PEEPERS DOWN!! Because of their high pitched repetitive nature, I think the default volume is way too loud. Yes, you can turn it down in the menu, but don't assume people will do that.
-The light coloured text on the menu screens is very difficult to read! Cream coloured text on a beige background. Not the best choice.
-When playing with the mouse, I wanted to click on the lilly leaf at the end of a row and have the frog go there. Having to click on each individual leaf was annoying. Also when I clicked somewhere I couldn't go, it increased my move counter. This felt unfair, like I was being penalised for learning the game.
-When playing with keys, I'd like the frog to jump a little faster than it does. The delay feels sluggish between jumps when you hold the key down. Perhaps this could be added to the options menu?
-A game like this cries out for unlimited undo/redo moves. It's quite annoying to be half way through a level, make one little mistake, and have to start all over again. And perhaps also an auto save would be good so you can leave mid level, and continue at a later time.
-When there are multiple frogs on a level, you have to switch between them by pressing Tab. Why limit it to just that key? If I hadn't read the instructions, I would have instinctively tried Return, shift, and spacebar. When that didn't work I might have given up playing out of confusion. So I'd suggest any of those keys should switch frogs.
-For the demo, these levels might be a bit too difficult. Although the concept is easy to pick up, getting the hang of the game still takes some time, and I think these levels might be a bit unforgiving.
-What is the minimum number of moves that each level can be won in. For example I did level 9 in 24 moves, but I have no idea if that is a good score or not. By showing the minimum number of moves that a level can be won in, you increase the replayability of the game because it gives people a reason to try a level again to see if they can perfect it. I did notice a star next to level 8 (which I did in 13 moves). Does that signify I did it in the lowest possible number? If so, I would suggest adding that to the instructions.
-Possible bug: a couple of times when I would push 2 or more lilly leaves, the frog would continue jumping to the end of the line even though I had released the key. I tried to recreate the effect the last time it happened and couldn't, so it seems to happen randomly.
Overall I think this game shows quite a lot of potential. It has a nice theme, good production values, and pleasing gameplay (beating a tough level does feel satisfying). I think it just needs a little tweaking to make it a bit more user friendly.