While I'm not planning on updating this game, as it was made in a week for fun, I'll definitely keep it in mind for my bigger game that I'm still working on!
The game has a really nice feel and I love the art but, the fact that you first tell the player how to control the fish later in the game is sort of annoying. I had figure out how to do that myself. I realize now that RMB and LMB means right mouse button and left mouse button, but I didn't know that, I was thinking that it was R, M or B to swim. Other than that I liked it.
