The bad - portrait orientation would work really well on a mobile phone but not so good on a laptop. The background is black and it makes it hard to tell the boundary to your game as black is added to the sides on horizontal screens
The good - The pixel art is really stylish and I like it a lot, love the frog and all his special effects, and all the spikes and arrows look really good, the controls are also great, the music too and I like how you collect the letters and fit through the gaps. This is a really cool game, especially so for a mobile phone I can imagine